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Coreopsideae

(Tribe)

Overview

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A Tribe in the Kingdom Plantae.

Photos

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Taxonomy

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The Tribe Coreopsideae is a member of the Subfamily Asteroideae. Here is the complete "parentage" of Coreopsideae:

The Tribe Coreopsideae is further organized into finer groupings including:

Genera

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Abies

Trees evergreen, crown usually spirelike to conic, sometimes flat to round topped in age. Bark initially thin, smooth, bearing resin blisters, in age furrowed and/or flaking in plates. Branches whorled, irregular internodal branches occasionally produced by epicormic sprouting (growing from a dormant bud) ; short (spur) shoots absent; leaf scars prominent, ± circular to broadly elliptic, flush with twig surface, slightly depressed, or slightly raised evenly all around. Buds ovate or oblong, resinous or not, apex rounded or pointed. Leaves borne singly, persisting 5 or more years, spirally arranged but often proximally twisted so as to appear either 1-ranked (pointing up like toothbrush bristles) or 2-ranked, sessile, typically constricted and often twisted above the somewhat broadened base, sheath absent; leaves on vegetative branches flattened, frequently grooved adaxially, usually notched to rounded at apex; leaves on fertile branches sometimes appearing 4-sided, upright, sharp-pointed to rounded at apex; resin canals 2. Cones borne on year-old twigs. Pollen cones grouped, ovate or oblong-cylindric, leaving gall-like protuberances after falling, yellow to red, green, blue, or purple. Seed cones maturing in 1 season, erect, ovoid to oblong-cylindric or cylindric, not falling whole but scale by scale, cone axis persisting as an erect "spike" on branch; scales shed individually, fan-shaped, lacking apophysis and umbo; bracts included to exserted. Seeds winged, the wing-seed juncture bearing resin sac; cotyledons 4--10. x =12.[1] [more]

Acantholimon

Shrublets, usually thorny, pulvinate, often subglobose, many-branched. Leaves borne on current year's branches, crowded, sessile, persistent on old branches after withering; spring leaves at base of current year's branches and similar or different from summer leaves; leaf blade linear, linear-needlelike, or linear subulate, usually very shallowly obdeltate to subcomplanate in cross section, apex usually pointed to awned. Inflorescences borne in axil of spring leaves at base of current year's branches, branched or unbranched; spikes pedunculate, with 2--8 spikelets, arranged in 2 rows, sometimes rachis undeveloped with spike or spikelets axillary; spikelets 1--5-flowered; bracts distinctly shorter than bractlet of first flower, margin membranous; first bractlet similar to bract, margin broadly membranous. Calyx funnelform or rarely subtubular; tube straight or occasionally basally oblique, inconspicuously herbaceous along ribs and scarious between ribs; limb purple, pink, or white, broad, scarious, 5- or 10-lobed. Corolla slightly exserted from calyx; petals basally slightly connate. Stamens adnate to corolla base. Ovary linear-cylindrical, apex attenuate. Styles 5, free, glabrous; stigmas depressed capitate. Capsules oblong-filiform.[2] [more]

Acanthus

Acer

[more]

Aechmea

Aechmea is a of the botanical family Bromeliaceae, subfamily Bromelioideae. Aechmea has more than 140 species distributed from Mexico through South America. Most of the species in this genus are epiphytes. [more]

Aeginetia

Herbs fleshy. Stems very short, branched or not. Flowers large, solitary or clustered at stem apex. Bractlets absent. Pedicel very long, erect. Calyx spathelike, apex acute or obtuse-rounded. Corolla tubular or campanulate, indistinctly bilabiate; upper lip 2-lobed; lower lip 3-lobed; lobes subrounded. Stamens 4, included; anthers adherent, 1 cell fertile, another reduced into a spur. Carpels 2; ovary usually 1-locular and parietal placentas 2 or 4, occasionally imperfectly 2-locular and placentas axile. Style slightly curved; stigma fleshy, peltate. Capsule dehiscing by 2 valves. Seeds numerous; testa reticulate.[3] [more]

Aethionema

Perennial or annual herbs, often woody below, branched, erect or suberect, leafy, glabrous or rarely papillose. Leaves simple, usually sessile or subsessile, oblong or linear, glaucous. Racemes corymbose, usually many flowered, ebracteate. Flowers mediocre, rose, lilac or white, rarely yellowish; pedicls filiform, usually spreading in fruit. Sepals oblong, obtuse, rounded at apex; inner ±saccate at base; outer often somewhat hooded at apex. Petals obovate, cuneate or clawed, rarely oblong; claw 1-3-nerved. Stamens 6; filaments of longer stamens append-aged, dilated or linear; anthers often apiculate, ovate-orbicular. Lateral nectar glands in pairs, minute, semiglobose; middle usually absent. Ovary ± ellipsoid with narrowly flattened margin, 1-2-locular with 1-2 (rarely 3-4) ovules in each locule; stigma capitate, sub-sessile or on distinct short style. Siliculae ovate, elliptic or suborbicular, laterally flattened, usually winged, dehiscent, (rarely heterocarpic with dehiscent and indehiscent fruits), 1-4-seeded; apex generally deeply notched or emarginate; wing entire or variously dentate; seed ovate, brown, often minutely papillose; radicle incumbent, oblique or accumbent.[4] [more]

Ajuga

Plants annual, biennial or perennial, herbaceous, rarely shrubs. Leaves simple; leaf blade papery, margin dentate to incised, rarely subentire. Verticillasters 2- to many flowered, in false spikes; floral leaves similar to stem leaves or gradually reduced to bracts, rarely dissimilar, larger than stem leaves. Flowers subsessile. Calyx ovoid to globose, campanulate to funnelform, 10-veined, sometimes with inconspicuous accessory veins; teeth 5, slightly irregular. Corolla purple to blue, rarely yellow or white, 2-lipped, often persistent in fruit; tube straight to slightly curved, base slightly bent/swollen; throat slightly dilated, villous annulate, rarely glabrous inside; upper lip straight, entire to 2-lobed; lower lip elongate, 3-lobed, with middle lobe obcordate to nearly flabellate and lateral lobes oblong. Stamens 4, didynamous, exserted from upper lip, involute in bud, anterior 2 longer; filaments straight to slightly curved; anther cells 2, apically confluent. Style subequally 2-cleft, lobes subulate. Nutlets obovoid, triquetrous, netted on back, lateral-ventral side with an areole 1/2-2/3 its length, with an elaiosome.[5] [more]

Alchemilla

Herbs perennial (rarely annual), with woody rhizome. Stems decumbent to erect. Leaves stipulate, long petiolate; stipules adnate to sheathing petiole; leaf blade simple, ± orbicular, margin lobed, digitate, or palmately parted. Inflorescences usually dense corymbs, rarely lax cymes or a solitary flower, ebracteate. Flowers very small, bisexual. Hypanthium urceolate, persistent, with constricted throat. Sepals 4(or 5), valvate; epicalyx segments 4(or 5), alternating with sepals. Petals absent. Disk lining hypanthium, margin thickened. Stamens (1-) 4; filaments free, short. Carpel 1(-4), sessile or substipitate, free; ovule ascending from base of locule; style basal or adaxial, filiform, glabrous; stigma capitellate. Achene 1(-4), enclosed in membranous hypanthium. Seed basal; testa membranous; cotyledons cylindric-obovoid. x = 8.[6] [more]

Allium

Herbs, perennial, scapose, from tunicate bulbs, with onion odor and taste. Bulbs solitary or clustered, dividing at base, or on rhizomes, reforming annually; outer coats generally brown or gray, smooth, fibrous, or with cellular reticulation (generally important in identification) ; inner coats membranous. Leaves generally withering from tip by anthesis, usually persistent, 1-12, basal; blade usually linear, terete, channeled, or flat (carinate in A. sativum, A. praecox, A. tuberosum, A. rotundum, A. neapolitanum, A. triquetrum, A. unifolium, and A. lacunosum), straight or ± falcate (coiled or circinate in A. nevadense and A. atrorubens), broader in A. victorialis and A. tricoccum, not petiolate (except in A. tricoccum and A. victorialis) . Scape usually persistent, terete or flattened. Inflorescences umbellate, flowering centripetally (centrifugally in A. schoenoprasum), sometimes replaced totally or partially by bulbils, subtended by spathe bracts; bracts conspicuous, ± fused, usually 3+-veined, equaling pedicel except in some introduced species, membranous. Flowers erect (pendent in A. triquetrum) ; tepals 6, in 2 similar whorls, ± distinct, petallike, usually becoming becoming dry and persisting; stamens 6, epipetalous; filaments in all but 1 native species broad at base, fused into ring (some introduced species and A. victorialis appendaged), linear, generally glabrous (A. rotundum and A. hoffmanii papillose to ciliate proximally) ; anthers and pollen variously colored; ovary superior, 3-lobed, sometimes crested with processes, 3-locular, usually 2 ovules per locule (6-8 in A. nigrum), crest processes 3 or 6, smooth except in A. haematochiton, A. sharsmithiae, and A. lacunosum; style 1; stigma capitate to ± 3-lobed; pedicel erect or spreading (lax in A. triquetrum) . Fruits capsular, dehiscence loculicidal. Seeds black, obovoid, finely cellular-reticulate, cells smooth or minutely roughened, with 1-8 papillae, without caruncle except in A. triquetrum. x = 7, 8, 9.[7] [more]

Aloe

Plants succulent, shrubby or arborescent, scapose. Stems erect, clambering or ascending, branched or not. Leaves succulent, crowded, often rosulate or distichous; blade margins spiny-toothed or entire. Inflorescences axillary or terminal, paniculate to more often racemose, dense, bracteate. Flowers usually nodding; perianth red to yellow; tepals connate basally to almost entirely into tube; stamens 3 or 6; style slender; pedicel not articulate. Capsules papery to woody. x = 7.[8] [more]

Alstroemeria

Herbs, perennial, from fascicles of fusiform tubers. Stems mostly simple; fertile stems to 1 m or more; sterile stems shorter, more leafy. Leaves alternate; petiole often twisted so as to invert leaf; blade parallel-veined, linear to ovate, margins entire. Inflorescences terminal, umbellate [or 1-flowered]. Flowers slightly zygomorphic; tepals 6, distinct, red, orange, purple, green, or white, frequently spotted, to 5 cm; stamens 6, inserted on perianth base, declinate, usually unequal; ovary inferior; style slender; stigma 3-lobed, filiform. Fruits capsular, 3-valved, dehiscence loculicidal.[9] [more]

Alternanthera

Herbs or subshrubs, annual or perennial. Stems prostrate, decumbent, ascending, erect, or floating, indumentum of simple trichomes. Leaves opposite, sessile or petiolate; blade lanceolate to ovate, ovate-rhombic, or obovate-rhombic, margins entire. Inflorescences axillary or terminal, sessile or pedunculate, several-flowered cylindric spikes or globose heads, without immediately subtending leaves; bracts and bracteoles scarious. Flowers bisexual; tepals 5, distinct; stamens 3-5; filaments connate basally into tube or short cup; pseudostaminodes 5, alternating with stamens; ovule 1; style 1, ca. 0.2 mm; stigma capitate or rarely 2-lobed. Utricles compressed, ovoid or obovoid, indehiscence. Seeds 1, reddish brown, lenticular or ovoid-oblong.[10] [more]

Ammocharis

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Androsace

Herbs perennial, annual, or biennial, acaulescent, rarely caulescent with ascending or decumbent shoots from a caudex. Leaves forming a rosette, rarely alternate; rosettes solitary or clustered, forming lax mats or compact cushions. Inflorescences umbellate, rarely a solitary flower, with bracts. Flowers 5-merous, homostylous. Calyx campanulate to subglobose, shallowly to deeply lobed. Corolla white, pink, purple, or dark red, rarely yellow; tube usually ± inflated, ca. as long as to shorter than calyx; throat constricted; lobes entire or emarginate. Stamens included, inserted on corolla tube; filaments very short; anthers ovate, apex obtuse. Style not longer than corolla tube. Capsule subglobose, dehiscing nearly to base. Seeds few to many.[11] [more]

Arenaria

A genus in the Kingdom Animalia. [more]

Argylia

[more]

Arisaema

Herbs, terrestrial or wetland. Corms [rhizomes] nearly globose. Leaves usually appearing with flowers, 1--2(--3), erect; petiole longer than blade; blade medium to dark green, sometimes glaucous adaxially, palmately or pedately [radiately] divided, not peltate, leaflet elliptic to broadly ovate or oblanceolate, base rounded to obtuse or attenuate, apex obtuse or acute to acuminate; primary lateral veins of each leaflet pinnate. Inflorescences: peduncle erect, nearly equal to leaves [to very short], apex not swollen; spathe variously colored or striped, distal part open at maturity, exposing tip to 1/2 or more of spadix appendage; spadix ± cylindric, surmounted by sterile appendage of variable shape. Flowers unisexual, staminate and pistillate on same or different spadix; pistillate flowers congested; staminate flowers usually scattered, distal to pistillate flowers when both are present; perianth absent. Fruits not embedded in spadix, glossy orange to bright red. Seeds 1--6, mucilage sometimes present (not present in Arisaema triphyllum). x = 13, 14.[12] [more]

Aristolochia

Herbs or lianas, perennial. Stems erect, twining, or procumbent. Leaves alternate, 2-ranked (evident on young growth, becoming obscure with age in some species) ; true stipules absent; pseudostipules absent [present]; petiole sometimes very short. Leaf blade membranous to leathery. Inflorescences on new growth or on older stems, axillary, racemes or solitary flowers; bracts present. Flowers: calyx usually mixture of purple, brown, green, or red, bilaterally symmetric, tubular, usually bent or curved, 1- or 3-lobed, not fleshy, base with utricle (basal, inflated portion of calyx surrounding or containing gynostemium) ; tube narrowed, sometimes extended proximally as cylindric syrinx (tubular or ringlike structure at juncture of tube and utricle, projecting into utricle cavity) and distally as annulus (circular flange at juncture of tube and limb) on limb; corolla absent; stamens 5-6, adnate to styles and stigmas, forming gynostemium; ovary inferior, 3-, 5-, or 6-locular; styles 3, 5, or 6, connate in column. Capsule dry, dehiscent. Seeds flattened or rounded, sometimes winged. x = 6, 7, 8.[13] [more]

Arum

A genus in the Kingdom Animalia. [more]

Arundinaria

Small to arborescent bamboos, spreading or loosely clumped. Rhizomes leptomorph. Culms diffuse to pluricaespitose, suberect to drooping, 1-7(-13) m tall, 0.5-4(-6) cm thick; internodes terete to flattened on one side above branches. Branch buds tall, with or without promontory, within 2-keeled prophyll, always open at front. Branches (1 or) 2-5(-7), subequal. Lateral branch axes always subtended by sheaths, without replication of lateral branches. Culm sheaths deciduous to persistent, blade usually recurved or reflexed, lanceolate, articulate. Leaf sheaths persistent; blade oblong-lanceolate or narrowly lanceolate, small to medium-sized, without marginal necrosis in winter, arrangement random, transverse veins distinct. Inflorescence an open panicle or raceme, flowering branches usually subtended by tiny bracts. Spikelets several to many flowered, slender; rachilla internodes extended, disarticulating. Glumes 1 or 2, mucronate; lemma similar to glumes; palea 2-keeled, apex obtuse; lodicules 3. Stamens 3; filaments free, slender; anthers yellow. Style usually very short; stigmas 2 or 3, plumose. Caryopsis dry, oblong. New shoots May-Jun.[14] [more]

Asarina

[more]

Asclepias

Herbs, base frequently woody. Leaves opposite or whorled, short petiolate. Cymes terminal and extra-axillary, erect, umbel-like, many flowered. Calyx glands 5-10. Corolla rotate, deeply parted; lobes reflexed, valvate or rarely overlapping to right. Corona lobes 5, inserted on gynostegium, erect, apex hooded, with an incurved, ligular-hornlike adaxial appendage. Stamens inserted at base of corolla tube; filaments connate into a tube; anther appendages incurved; pollinia 2 per pollinarium, pendulous. Stigma head conical. Follicles fusiform, apex acuminate. Seeds flat, with a long coma.[15] [more]

Asplenium

Roots fibrous, not proliferous or proliferous and producing tiny plantlets. Stems erect, rarely long-creeping; scales basally attached, clathrate. Petioles not articulate. Blades 1--4-pinnate, of diverse size and shape. Indusia present. x = 36.[16] [more]

Astilbe

erbs perennial. Rhizomes thick. Stems brown paleaceous hairy or long pilose. Leaves alternate, long petiolate, 2-4 × ternately compound, rarely simple; stipules membranous; leaflets lanceolate, ovate, or broadly ovate to elliptic, margin dentate. Inflorescence a terminal panicle, bracteate. Flowers white, lilac, or purple, bisexual or unisexual, rarely plants polygamous or dioecious. Sepals (4 or) 5. Petals usually 1-5, sometimes more or absent. Stamens usually (5 or) 8-10. Carpels 2(or 3), ± connate or free; ovary subsuperior or semi-inferior, 2(or 3) -loculed with axile placentation or 1-loculed with marginal placentation; ovules many. Fruit a capsule or follicle. Seeds small.[17] [more]

Astrantia

Astrantia is a of herbaceous plants in the family Apiaceae, endemic to Central, Eastern and Southern Europe and the Caucasus. There are 8 or 9 species, which have aromatic roots, palmate leaves, and decorative flowers. They are commonly known as great masterwort, which may be confused with masterwort, Peucedanum ostruthium. [more]

Athamanta

[more]

Balbisia

[more]

Barbarea

Barbarea (, Winter cress or Yellow rocket) is a genus of about 22 species of flowering plants in the family Brassicaceae, native to temperate regions of the Northern Hemisphere, with the highest species diversity in southern Europe and southwest Asia. [more]

Basutica

[more]

Begonia

Perennial succulent herbs, rarely subshrubs. Stem erect, frequently rhizomatous, or plants tuberous and either acaulescent or shortly stemmed, rarely lianoid or climbing with adventitious roots, or stoloniferous. Leaves simple, rarely palmately compound, alternate or all basal; blade often oblique and asymmetric, rarely symmetric, margin often irregularly serrate and divided, occasionally entire, venation usually palmate; petiole long, weak; stipules membranous, usually deciduous. Flowers unisexual, plants monoecious, rarely dioecious, (1 or) 2-4 to several, rarely numerous, in dichotomous cymes, sometimes in panicle, with pedicels and bracts. Staminate flower: tepals 2 or 4 and decussate, usually outer ones larger, inner ones smaller; stamens usually numerous; filaments free or connate at base; anthers 2-celled, apical or lateral; connectives extended at apex, sometimes apiculate. Pistillate flower: tepals 2-5(-10) ; pistil composed of 2-5(-7) carpels; ovary inferior, 1-3(-7) -loculed; placentae axile or parietal; styles 2 or 3(or more), free or fused at base, forked once or more; stigma turgid, spirally twisted-tortuous or U-shaped, capitate or reniform, setose-papillose. Capsule dry, sometimes berrylike, unequally or subequally 3-winged, rarely wingless and 3- or 4-horned; seeds very numerous, pale brown, oblong, minute, testa reticulate.[18] [more]

Berberis

Shrubs or subshrubs, evergreen or deciduous, 0.1-4.5(-8) m, glabrous or with tomentose stems. Rhizomes present or absent, short or long, not nodose. Stems branched or unbranched, monomorphic or dimorphic, i.e., all elongate or with elongate primary stems and short axillary spur shoots. Leaves alternate, sometimes leaves of elongate shoots reduced to spines and foliage leaves borne only on short shoots; foliage leaves simple or 1-odd-pinnately compound; petioles usually present. Simple leaves: blade narrowly elliptic, oblanceolate, or obovate, 1.2-7.5 cm. Compound leaves: rachis, when present, with or without swollen articulations; leaflet blades lanceolate to orbiculate, margins entire, toothed, spinose, or spinose-lobed; venation pinnate or leaflets 3-6-veined from base. Inflorescences terminal, usually racemes, rarely umbels or flowers solitary. Flowers 3-merous, 3-8 mm; bracteoles caducous, 3, scalelike; sepals falling immediately after anthesis, 6, yellow; petals 6, yellow, nectariferous; stamens 6; anthers dehiscing by valves; pollen exine punctate; ovary symmetrically club-shaped; placentation subbasal; style central. Fruits berries, spheric to cylindric-ovoid or ellipsoid, usually juicy, sometimes dry, at maturity. Seeds 1-10, tan to red-brown or black; aril absent. x = 14.[19] [more]

Beta

Herbs, annual, biennial, or perennial, often with fleshy, thickened roots, glabrous throughout. Stems erect or procumbent, not jointed, not armed, not fleshy. Leaves alternate, petiolate or sessile; blade ovate-cordate to rhombic-cuneate, margins ± entire, apex obtuse . Inflorescences spikelike cymes or glomerules, ebracteate at least in distal 1/2. Flowers bisexual, bracteate; perianth segments 3-5, distinct, sometimes petaloid, rounded or keeled abaxially, wings and spines absent; stamens 5; ovary semi-inferior; stigmas usually 2-3(-5), connate basally. Fruiting structures achenes, connate with receptacle, often enclosed by swollen perianth. Seeds horizontal, orbicular or reniform; seed coat dark brown, smooth; embryo ± annular, perisperm copious. x = 9.[20] [more]

Betula

Trees or shrubs, to 30 m; trunks often several, branching excurrent, becoming deliquescent. Bark of trunks and branches dark brown to chalky white, smooth, often exfoliating; lenticels dark, prominent, sometimes horizontally expanded. Wood nearly white to reddish brown, light and soft to moderately heavy and hard, texture fine. Branches, branchlets, and twigs nearly 2-ranked; young twigs differentiated into long and short shoots, sometimes with taste and odor of wintergreen. Winter buds sessile, slender, terete, apex acute; scales several, imbricate, smooth. Leaves mostly on short shoots, nearly 2-ranked. Leaf blade ovate to deltate, elliptic, or nearly orbiculate, 0.5--10(--14) × 0.5--8 cm, thin, margins doubly serrate or serrate (or crenate to shallowly round-lobed in dwarf northern species) ; surfaces glabrous to tomentose, sometimes abaxially resinous-glandular. Inflorescences: staminate catkins mostly terminal on branchlets, solitary or in small racemose clusters, formed previous growing season and often exposed during winter, expanding with leaves; pistillate catkins proximal to staminate catkins, mostly solitary, erect, ovoid to cylindric, firm; scales and flowers crowded, enclosed within buds during winter, expanding with leaves. Staminate flowers in catkins 3 per scale; stamens (1--) 2--3(--4), filaments divided below anthers, nearly to base. Pistillate flowers (1--) 3 per scale. Infructescences erect or pendulous; scales usually deciduous with release of fruits (although persisting into winter in a few species), (1--) 3-lobed, thickened or leathery but not woody. Fruits samaras, lateral wings 2, moderately wide to broad, membranaceous. x = 14.[21] [more]

Bidens

Annuals or perennials [shrubs, vines], 5400 cm. Stems usually 1, usually erect, (terete or 4-angled, often striate or sulcate) branched distally or ± throughout. Leaves usually cauline; usually opposite, rarely whorled, distal sometimes alternate; petiolate or sessile; blades simple, compound (leaflets petiolulate), or 13+-pinnatisect or -pinnately lobed (submerged leaves multifid in B. beckii, an aquatic), ultimate margins entire, dentate, laciniate, serrate, or toothed, faces usually glabrous, sometimes hirtellous, hispidulous, pilosulous, puberulent, scabrellous, or strigillose. Heads usually radiate or discoid, sometimes ± disciform, usually in corymbiform arrays, sometimes in 2s or 3s or borne singly. Calyculi of (3) 513(21+) erect to spreading or reflexed, ± herbaceous (sometimes foliaceous) bractlets or bracts (sometimes surpassing phyllaries). Involucres mostly hemispheric or campanulate to cylindric, (1) 412(25+) mm diam. Phyllaries persistent, mostly (4) 821(30+) in ± 2 series, usually distinct, sometimes connate 0.050.1 their lengths, mostly oblong or ovate to lance-oblong, chartaceous to membranous or scarious (usually striate with brownish nerves, margins usually hyaline). Receptacles flat or slightly convex, paleate; paleae usually falling, (usually stramineous, sometimes yellow to orange, with darker striae) ± flat to slightly navicular. Ray florets usually 121+ (often 3, 5, 8, or 13), sometimes 0, usually neuter, sometimes styliferous and sterile; corollas usually yellow, sometimes white or pinkish. Disc florets (5) 1260(150+), bisexual, fertile; corollas usually yellow to orange, sometimes whitish [purplish], tubes shorter than throats, lobes (3) 5, ± deltate (staminal filaments glabrous; style-branch appendages deltate or lanceolate to subulate). Cypselae usually obcompressed to flat, unequally 34-angled, and cuneate to oblanceolate or obovate, sometimes (all or inner) ± equally 4-angled and linear-fusiform, rarely subterete, margins (± corky-winged in B. aristosa, B. cernua, and B. polylepis) usually retrorsely, sometimes patently or antrorsely, barbed or ciliate, apices sometimes attenuate, not beaked [beaked], faces smooth, striate, or ± tuberculate, glabrous or hairy, each sometimes with 2 grooves; pappi 0, or persistent, of (1) 24(8) usually retrorsely, sometimes antrorsely, barbellate or ciliate, rarely smooth, awns. x = 13.[22] [more]

Biscutella

Biscutella is a genus of about 46 species of of Brassicaceae or Cruciferae family, according to Appel, O. & Al-Shehbaz, I. 2003 . [more]

Bomarea

Bomarea is one of the two major in the plant family Alstroemeriaceae. Most occur in the Andes. Several species are occasionally found as garden plants. [more]

Buddleja

Shrubs, less often trees, lianas, or suffrutescent herbs. Branches terete, 4-angled, or 4-winged. Leaves opposite, rarely alternate; stipules usually leafy, suborbicular and auriculate or reduced to a transverse line; petiole often short; leaf blade margin entire, crenate, or dentate. Inflorescences terminal and/or axillary, usually many-flowered; bracts mostly leafy; bracteoles resembling sepals. Flowers 4-merous, bisexual or unisexual. Calyx campanulate or subcampanulate, less often cup-shaped or obconical, tube usually longer than lobes. Corolla campanulate, cup-shaped, salverform, or funnel-shaped; tube cylindrical, straight to curved, usually longer than lobes; lobes imbricate, rarely valvate. Stamens inserted on corolla tube, usually included, alternating with corolla lobes; filaments shorter to longer than anthers; anthers introrse, 2-locular, base usually deeply cordate. Ovary 2(--4) -locular, with several to many ovules per locule. Style short to long; stigma often large, clavate, capitate, or less often 2-lobed. Fruit a septicidally 2-valved capsule or in China only Buddleja madagascariensis a berry, many-seeded. Seeds small, often winged; endosperm fleshy; embryo straight.[23] [more]

Buphthalmum

[more]

Bupleurum

Herbs perennial, rarely annual, glabrous. Rootstock usually short, woody. Stem alternate or dichotomously branched, green or glaucous, base with or without fibrous remnant sheaths. Leaves entire, petioles sheathing; blade membranous, herbaceous or coriaceous, usually with parallel venation, base usually tapering into petiole. Cauline leaves often sessile, clasping, auriculate or perfoliate. Inflorescence loose, umbels compound, terminal and lateral; bracts several, conspicuous, often similar to uppermost leaves; rays few to many; bracteoles several, conspicuous. Calyx teeth obsolete. Petals yellow, greenish-yellow, tinged purple or purple, oblong to orbicular, apex narrowly inflexed. Stylopodium conic, low-conic or discoid; styles short, often reflexed. Fruit oblong to ovoid-oblong or ellipsoid, slightly laterally compressed, mericarps subpentagonal (rarely rounded) in cross section; ribs 5, filiform, prominent or obscure; vittae 1-3(-6) in each furrow, 2-6(-8) on commissure, sometimes obscure. Seed face plane. Carpophore 2-cleft to base.[24] [more]

Buxus

Profusely branched shrubs or dwarf trees. Leaves opposite, sessile or subsessile, entire, glabrous or hairy. Inflorescence pedunculate or sessile, of dense racemose clusters, often with a terminal female flower surrounded by several male flowers. Flowers greenish-yellow, unisexual (plants monoecious), sessile to shortly pedicellate. Sepals 4-6, unequal. Stamens 4, free, inserted on receptacle around vestigial ovary, anthers oblong with thick connective, dehiscing longitudinally. Ovary tricarpellary, syncarpous, 3-loculed, each locule 2-ovuled; styles 3, rarely basally connate, spreading, short, stigma 2-lobed. Capsule coriaceous, ovoid, 3-beaked with persistent styles, dehiscing into 3, 2-seeded and 2-horned valves. Seed caruncled, somewhat triangular or oblong, glossy-black; embryo with oblong cotyledons.[25] [more]

Calothamnus

Calothamnus is a of shrubs, in the family Myrtaceae, which are endemic to the south-west of Western Australia. The name Calothamnus, ascribed to the genus by botanist Robert Brown, is derived from the Greek words kalos (beautiful) and thamnos (shrub). [more]

Campanula

Plants perennial or annual, erect trailing or decumbent, glabrous, pubescent, or hirsute. Leaves simple, alternate or forming rosettes at the base. Inflorescence 1-many flowered, with racemes or spikes. Flowers blue to purple or white. Sepals 5, with or without reflexed appendages between lobes; calyx tube adnate to the ovary, segments 5-lobed. Corolla campanulate, funnel-shaped or tubular. Stamens 5, free, filaments dilated at the base. Ovary 3-locular; style cylindrical; stigmas 3. Fruit a capsule, elongated to ovoid, obovoid or round, with membran¬ous walls; dehiscence by irregular pores at the bases or the sides. Seeds minute, numerous.[26] [more]

Campylotropis

[more]

Cardamine

Herbs annual, biennial, or rhizomatous or tuberous perennial. Trichomes absent or simple. Stems erect or prostrate, leafy or rarely leafless and plant scapose. Basal leaves petiolate, rosulate or not, simple and entire, toothed, or 1-3-pinnatisect, or palmately lobed, sometimes trifoliolate, pinnately, palmately, or bipinnately compound. Cauline leaves alternate, (rarely opposite or whorled), simple or compound as basal leaves, petiolate or sessile and base cuneate, attenuate, auriculate, or sagittate, margin entire, dentate, or variously lobed. Racemes ebracteate or rarely bracteate throughout or only basally, corymbose or in panicles, elongated in fruit. Fruiting pedicels slender or thickened, erect, divaricate, or reflexed. Sepals ovate or oblong, base of lateral pair saccate or not, margin often membranous. Petals white, pink, purple, or violet, never yellow, rarely absent; blade obovate, spatulate, oblong, or oblanceolate, apex obtuse or emarginate; claw absent or strongly differentiated from blade, longer or shorter than sepals. Stamens 6 and tetradynamous, rarely 4 and equal in length; anthers ovate, oblong, or linear, obtuse at apex. Nectar glands confluent and subtending bases of all stamens; median glands 2 or rarely 4 or absent; lateral glands annular or semiannular. Ovules 4-50 per ovary. Fruit dehiscent siliques, linear or rarely narrowly oblong or narrowly lanceolate, latiseptate, sessile; valves papery, not veined, glabrous (or very rarely hairy), smooth or torulose, dehiscing elastically acropetally, spirally or circinately coiled; replum strongly flattened; septum complete, membranous, translucent; style distinct or rarely obsolete; stigma capitate, entire. Seeds uniseriate, wingless, rarely margined or winged, oblong or ovate, flattened; seed coat smooth, minutely reticulate, colliculate, or rugose; mucilaginous or not when wetted; cotyledons accumbent or very rarely incumbent.[27] [more]

Carex

Herbs, perennial, cespitose or not, rhizomatous, rarely stoloniferous. Culms usually trigonous, sometimes round. Leaves basal and cauline, sometimes all basal; ligules present; blades flat, V-shaped, or M-shaped in cross section, rarely filiform, involute, or rounded, commonly less than 20 mm wide, if flat then with distinct midvein. Inflorescences terminal, consisting of spikelets borne in spikes arranged in spikes, racemes, or panicles; bracts subtending spikes leaflike or scalelike; bracts subtending spikelets scalelike, very rarely leaflike. Spikelets 1-flowered; scales 0-1. Flowers unisexual; staminate flowers without scales; pistillate flowers with 1 scale with fused margins (perigynium) enclosing flower, open only at apex; perianth absent; stamens 1-3; styles deciduous or variously persistent, linear, 2-3(-4) -fid. Achenes biconvex, plano-convex, or trigonous, rarely 4-angled. x = 10.[28] [more]

Carlina

Biennials [annuals or perennials, shrubs, or dwarf trees], 10-80 cm. herbage spiny . Stems erect or spreading, simple to branched distally or throughout. branches ascending to spreading. Leaves basal and cauline [all cauline]; petiolate or sessile; blade margins dentate to pinnately lobed, ± spiny, faces ± tomentose or glabrate. Heads discoid, borne singly or in corymbiform arrays. Involucres hemispheric to campanulate. Phyllaries many in several series. outer ovate to lanceolate, bases appressed; (at least outer ± leaflike) ; middle smaller, scarious, margins spiny-dentate or -lobed, apical appendages spine-tipped, inner apices spreading, membranous, white to stramineous, raylike, entire . Receptacles flat to conic, epaleaete scaly or bristly (each floret surrounded by ± connate, membranous scales dissected into linear lobes). Florets many; corollas yellow to maroon, tubular-funnelform, lobes triangular; anther bases tailed, linear-oblong, apical appendages acute; style branches: fused portions ca. 0.5 mm, with basal nodes glabrous or minutely hairy, distally puberulent. distinct portions tapered, not or scarcely separating. Cypselae cylindric to fusiform, not ribbed, without apical rim. hairy with forked, 2-celled hairs, attachment scars basal-oblique; pappi readily falling, of many persistent bristles in 1 series, basally connate in groups of 3-10, plumose. x = 9, 10.[29] [more]

Caryopteris

Herbs, subshrubs, or shrubs, erect or climbing. Leaves opposite, simple, entire or dentate, usually with glistening glands. Flowers in lax or dense cymes often aggregate into thyrses, rarely solitary. Calyx (4- or) 5- (or 6) -dentate or -lobed. Corolla short tubed, slightly 2-lipped, margin entire or dentate; lobes 5, spreading; lower lobe larger, concave, fringed. Stamens 4, often strongly exserted, inserted on apical part of corolla tube. Ovary 4-locular; ovules pendulous or laterally attached. Stigma 2-cleft. Fruit dry, usually dividing into four nutlets.[30] [more]

Ceanothus

Ceanothus is a genus of about 50–60 species of shrubs or small trees in the buckthorn family Rhamnaceae. The genus is confined to North America, the center of its distribution in California, with some species (e.g. C. americanus) in the eastern United States and southeast Canada, and others (e.g. C. coeruleus) extending as far south as Guatemala. Most are shrubs 0.5–3 m tall, but C. arboreus and C. thyrsiflorus, both from California, can be small trees up to 6–7 m tall. [more]

Cedrus

Trees evergreen, monoecious; branchlets strongly dimorphic: long branchlets growing several cm each year and bearing very slow-growing, lateral short branchlets; winter buds small, scales persistent. Leaves spirally arranged and radially spreading on long branchlets, shorter and very densely clustered on short branchlets, needlelike, triangular or ± quadrangular in cross section, stiff, stomatal lines present both adaxially and abaxially, most numerous abaxially, vascular bundles 2, almost fused, resin canals 2, small, marginal. Cones borne on apex of short branchlets, solitary, erect. Pollen cones with many spirally arranged microsporophylls; microsporangia 2; pollen not saccate. Seed cones erect, light purple at fertilization, maturing in 2nd(or 3rd) year; ovulate scales spirally arranged, sessile, with small bracts and 2 ovules adaxially. Seed scales closely arranged, large, woody, those at base and apex of cone sterile, deciduous at maturity. Bracts minute, falling together with seed scales at maturity from persistent, central axis. Seeds with large, membranous wing. Cotyledons usually 6-10. Germination epigeal. 2n = 24.[31] [more]

Ceropegia

Herbs perennial, erect or twining, sap clear or cloudy, rarely milky. Rootstock often a cluster of fusiform roots or a subglobose tuber, sometimes a rhizome [or with fibrous roots only]. Stems herbaceous [to very succulent]. Inflorescences extra-axillary [rarely terminal], mostly umbel-like, less often racemelike and sometimes branched. Flowers usually large. Calyx deeply 5-parted; basal glands many, small. Corolla tubular, base swollen, often asymmetrically, upper part often funnelform; lobes usually slender and coherent at apex. Corona double, outer lobes 5, joined to form a cup, entire to deeply 2-lobed so that outer corona is 10-toothed; inner lobes 5, subulate to narrowly spatulate, basally incumbent on anthers, apical part usually long, erect. Filaments connate into a very short tube; anthers without apical appendages; pollinia 2 per pollinarium, erect, inner angle with a prominent translucent margin. Stigma head convex or impressed. Follicles linear, fusiform, or cylindric.[32] [more]

Chamaecyparis

Trees (rarely shrubs). Branchlets terete or rhombic in cross section, in fan-shaped or pinnately flattened sprays. Leaves opposite in 4 ranks. Adult leaves usually appressed, lateral and facial pairs similar, closely overlapping, scalelike, free portion of long-shoot leaves to ca. 7 mm; abaxial glands present or absent, circular to linear. Pollen cones with 2--3 pairs of sporophylls, each sporophyll with 2--4 pollen sacs. Seed cones maturing and opening in 1--2 years, nearly globose, glaucous, 4--12 mm; scales persistent, 2--5(--6) pairs, valvate, peltate or basifixed, thick and woody, terminal pair often fused. Seeds 1--4 per cone scale, lenticular, equally 2-winged; cotyledons 2--3. x = 11.[33] [more]

Cheilanthes

Plants usually on rock. Stems compact to long-creeping, ascending to horizontal, usually branched; scales brown to black or often bicolored with dark central stripe and lighter margins, linear-subulate to ovate-lanceolate, margins entire or denticulate. Leaves monomorphic, clustered to widely scattered, 4--60 cm. Petiole brown to black or straw-colored, rounded, flattened, or with single longitudinal groove adaxially, pubescent, scaly, or glabrous, with a single vascular bundle. Blade linear-oblong to lanceolate, ovate, or elongate-pentagonal, pinnate-pinnatifid to 4-pinnate at base, leathery or rarely somewhat herbaceous, abaxially pubescent and/or scaly, rarely glabrous, adaxially pubescent to glabrous, dull, not striate; rachis straight. Ultimate segments of blade stalked or sessile, usually free from costae, round to elongate or spatulate, usually less than 4 mm wide, base rounded, truncate, or cuneate; stalks (when present) often lustrous and dark colored; segment margins usually recurved to form confluent, poorly defined false indusia, extending entire length of segment or discontinuous on apical or lateral lobes. Veins of ultimate segments free or rarely anastomosing, pinnately branched and divergent distally. False indusia greenish to whitish, usually narrow, clearly marginal or rarely inframarginal, often concealing sporangia. Sporangia confined to submarginal vein tips or scattered along veins near segment margins, containing 64 or 32 spores, not intermixed with farina-producing glands. Spores brown to black or gray, rarely yellowish, tetrahedral-globose, rugose or cristate, lacking prominent equatorial ridge. Gametophytes glabrous. x = 30 (29 in Cheilanthes alabamensis complex).[34] [more]

Cirsium

Annuals, biennials, or perennials, 5-400 cm, spiny. Stems (1-several) erect, branched or simple, sometimes narrowly spiny-winged. Leaves basal and cauline; finely bristly-dentate to coarsely dentate or 1-3 times pinnately lobed, teeth and lobes bristly-tipped, faces green and glabrous or densely gray-canescent, usually eglandular. Heads discoid, borne singly, terminal and in distal axils, or in racemiform, spiciform, subcapitate, paniculiform, or corymbiform arrays. ( Peduncles with ± reduced leaflike bracts.) Involucres cylindric to ovoid or spheric, (1-6 ×) 1-8 cm. Phyllaries many in 5-20 series, subequal or weakly to strongly, outer and middle with bases appressed and apices spreading to erect, usually spine-tipped, innermost usually with erect, flat, often twisted, entire or dentate, usually spineless apices (distal portion of phyllary midveins in many species with elongate, glutinous resin gland, usually milky in fresh material but dark brown to black when dry) . Receptacles flat to convex, epaleate, covered with tawny to white bristles or setiform scales. Florets 25-200+; corollas white to pink, red, yellow or purple, ± bilateral, tubes long, slender, distally bent, throats short, abruptly expanded. cylindric, lobes linear; (filaments distinct) anther bases sharply short-tailed, apical appendages linear-oblong; style tips elongate (as measured in descriptions including the slightly swollen nodes, long cylindric fused portions of style branches and very short distinct portions) . Cypselae ovoid, ± compressed, with apical rims, smooth, not ribbed, glabrous, basal attachment scars slightly angled; pappi persistent or falling in rings, in 3-5 series of many flattened, plumose bristles or plumose, setiform scales (longer bristles shorter than corollas except in C. foliosum and C. arvense) . x = 17.[35] [more]

Citrofortunella

× Citrofortunella is the term for a group of plants that are a between plants of the genus Citrus with kumquats (genus or subgenus Fortunella). [more]

Colliguaja

Colliguaja is a genus of the family Euphorbiaceae. [more]

Collinsia

A Genus in the Kingdom Animalia.[36] [more]

Collospermum

[more]

Congea

Shrubs, climbing. Branchlets subterete, tomentose with stellate and/or simple hairs. Leaves opposite. Cymes capitate, 3-9-flowered, arranged in panicles, pedunculate; involucral bracts 4 or by fusion reduced to 3 with third bract deeply emarginate. Calyx funnelform or campanulate, 5-dentate, slightly enlarged in fruit. Corolla with a slender tube, outside glabrous, pubescent in throat, 2-lipped, lower lip 3-cleft, upper lip 2-cleft. Stamens 4, didynamous, inserted at corolla throat; anthers subglobose. Ovary obovate, apex glandular, imperfectly 2-locular; ovules 2 per locule. Stigma capitate or shortly 2-cleft. Fruit obovate, indehiscent.[37] [more]

Conoclinium

Perennials, 50-200 cm (usually rhizomatous, colonial, rhizomes relatively slender). Stems erect to decumbent (sometimes rooting at proximal nodes), not much branched distal to bases. Leaves cauline; opposite; petiolate; blades usually 3-nerved from bases, deltate, oblanceolate, ovate, ovate-deltate, oblong, or triangular, margins dentate or lobed (to dissected in C. dissectum), faces glabrate to puberulous, villosulous, or hispidulous, gland-dotted. Heads discoid, in tight, corymbiform arrays. Involucres hemispheric, 3-6 mm diam. Phyllaries persistent, ca. 25 in 2-3 series, obscurely 2-3-nerved, lanceolate to linear, ± equal (herbaceous). Receptacles conic, epaleate. Florets 35-70+; corollas usually blue to purple or violet, rarely white, throats narrowly funnelform (lengths ca. 4 times diams.) ; styles: bases not enlarged, glabrous, branches filiform to linear-clavate. Cypselae prismatic (bases narrowed), 5-ribbed, glabrous or sparsely gland-dotted and/or hispidulous; pappi persistent, of ca. 30 barbellate bristles in 1 series. x = 10.[38] [more]

Conophytum

[more]

Conostephium

[more]

Convolvulus

Plants annual or perennial, prostrate, erect, or strangling or twining herbs, or cushionlike or erect shrubs; axial parts usually pubescent, hairs simple or 2-armed. Leaves simple, petiolate or sessile, margin entire or ± lobed. Flowers axillary, peduncled, solitary or in various kinds of inflorescences. Sepals equal or unequal, middle sepal asymmetric (exposed 1/2 similar to outer 2 sepals, enclosed 1/2 similar to inner 2 sepals), persistent, not enlarged. Corolla funnelform or campanulate; limb shallowly lobed or entire, with 5 ± distinct midpetaline bands. Stamens included, inserted at corolla base; filaments dilated basally, filiform apically; pollen ellipsoid, 3- (or 4) -colpate, not spiny. Disc ringlike or cupular. Pistil included; ovary 2-loculed; ovules 2 per locule. Style 1, filiform; stigmas 2, linear, cylindric, or clavate. Capsule 2-loculed, 4-valved or irregularly dehiscent. Seeds 1-4, black or brown, often verruculose, pubescent, rarely glabrous.[39] [more]

Cooperia

A genus in the Kingdom Animalia. [more]

Copernicia

Copernicia is a of 24 species of palms, native to South America and the Caribbean. They are fan palms (Arecaceae tribe Corypheae), with the leaves with a bare petiole terminating in a rounded fan of numerous leaflets. The species are small to medium-sized trees growing to 5-30 m tall, typically occurring close to streams and rivers in savanna habitats. [more]

Coprosma

Coprosma is a genus of about 90 species that are found in (45 spp), Hawaii (c. 20 spp) and in Borneo, Java, New Guinea, islands of the Pacific Ocean to Australia. Many species are small shrubs with tiny evergreen leaves, but a few are small trees and have much larger leaves. The flowers have insignificant petals and are wind-pollinated, with long anthers and stigmas. Natural hybrids are common. The fruit is a non-poisonous juicy berry, most often bright orange (but can be dark red or even light blue), containing two small seeds. It is said that coffee can be made from the seeds, Coprosma being related to the coffee plants. A notable feature (also found in other genera of the Rubiaceae) is that the leaves contain hollows in the axils of the veins; in these, and on the leaf stipules, nitrogen-fixing bacteria grow. [more]

Cornus

Shrubs, trees, or herblike shrubs, precocious, coetaneous, or serotinous. Young shoots pubescent, rarely glabrous; trichomes curly or straight, raised or appressed. Stem sympodial, rarely monopodial. Winter buds terminal or axillary, mixed or separate, covered or exposed. Petiole slightly furrowed adaxially; leaf blade narrowly elliptic, elliptic, oblong, or ovate, glabrous to densely pubescent, lateral veins actinodromous, often raised abaxially. Inflorescence formed in previous or current year; bracts covering inflorescence or not. Sepals 4, fused; teeth absent, minute, or variously triangular. Petals 4, free, spreading, oblong to orbicular, valvate. Filaments filiform or awn-shaped, longer than style, longer or shorter than petals; anthers whitish or yellow, rarely blue, red, or purplish, ellipsoid to narrowly ellipsoid or oblong, 2-loculed. Ovary obovoid, crowned by a disk. Fruit globose, ovoid, oblong, or ellipsoid, crowned by persistent calyx, disk, and style; stones globose, ovoid, ellipsoid, oblong, sometimes asymmetric, surface smooth or ribbed, apex rarely pitted.[40] [more]

Cornutia

[more]

Coryphantha

Plants erect, spheric and unbranched or, if branched, then ultimately forming low clumps or small mats. Roots diffuse, succulent taproots (sometimes tuberlike or massive), or in some species ultimately adventitious from bases of branches. Stems unsegmented, hemispheric, spheric, ovoid, or cylindric, sometimes flat-topped, tuberculate, 1-20(-50) × 1-15 cm after sexual maturity; tubercles conic to hemispheric or cylindric, never coalescing into ribs, protruding conspicuously, grooved on their adaxial (upper) sides in sexually mature plants, i.e., areoles of sexually mature plants each consisting of fertile meristem (often woolly) in tubercle axil and spine cluster on tubercle apex, the two connected by a linear isthmus (areolar extension, often short woolly) recessed into an areolar groove on adaxial side of tubercle (groove extends only 1/2-3/4 distance from spine cluster to tubercle axil in C. macromeris) ; areolar glands present or absent; cortex and pith usually mucilaginous or with mucilage confined to flowers and fruits. Spines 3-95 per areole, color various, needlelike (peglike in C. minima), usually differentiated into radial and central spines; radial spines straight or curved; central spines, when present, straight or curved (hooked in C. robustispina), terete, 4-55 mm. Flowers diurnal (sometimes ± vespertine in C. tuberculosa), borne at or near stem apex (lateral in C. recurvata), on new growth of current year and/or last-produced areoles of preceding year (fruiting zone in some species becoming displaced outward and downward by apical vegetative growth after flowering), campanulate or funnelform to nearly salverform with recurved tepals, 1-6.5 × 0.6-10 cm; outer tepals entire or fringed; inner tepals variously colored, never pure red or blue, 4.5-40 × 1-15 mm, often glossy, margins entire, toothed, fringed, or erose; scales on ovary none or few, narrow or rudimentary, entire or erose, axils naked, spineless; stigma lobes 4-13, white to yellow or orange-yellow (rarely pinkish), 0.5-8 mm. Fruits indehiscent, green or red, spheric, ellipsoid, ovoid to narrowly fusiform, or obovoid, 1.5-50 × 1.5-20 mm, usually juicy, sometimes slimy or fleshy (dry in C. minima), scales usually absent (or few), spines absent; pulp colorless to white, greenish, or pinkish; floral remnant persistent or deciduous. Seeds usually reddish brown or black, sometimes yellowish, reniform, comma-shaped, obovoid, or spheric, 0.8-3.5 mm in greatest diam., shiny or glossy; testa smooth, raised-reticulate, or pitted; strophiole (unsclerified tissue in/around hilum) small or large, flat or slightly protruding, never surrounding micropyle, replaced by a narrow raphe in some species (e.g., C. ramillosa) ; sclerified collar between hilum and micropyle short, solid or grooved, nearly open in some species. x = 11.[41] [more]

Costus

Rhizomes horizontal, tuberous. Stems sometimes branched, usually spirally twisted, leafy, rarely plants stemless. Leaf blade oblong to lanceolate. Inflorescences terminal or lateral on separate, short, leafless shoots arising from rhizomes, conical, densely many flowered; bracts imbricate, 1- or 2-flowered. Calyx 3-lobed or -toothed at apex. Corolla tube equaling or longer than calyx. Labellum obovate, large, margin incurved. Stamen petaloid; anther locules linear. Ovary 3-loculed; ovules many per locule, superposed. Style filiform; stigma funnelform. Stylodes absent. Capsule subglobose or ovoid, woody. Seeds many, black; aril lacerate.[42] [more]

Cotinus

Smoketree or Smoke bush (Cotinus ) is a of two species of flowering plants in the family Anacardiaceae, closely related to the sumacs (Rhus). [more]

Cotoneaster

Shrubs, rarely small trees, erect, decumbent, or prostrate, deciduous, semievergreen, or evergreen. Branchlets mostly terete, rarely slightly angulate, unarmed. Winter buds small; scales several, imbricate, exposed. Leaves alternate, simple, shortly petiolate; stipules caducous, usually subulate, small; margin of leaf blade entire, venation camptodromous. Inflorescences terminal or axillary, cymose or corymbose, sometimes flowers several fascicled or solitary. Hypanthium turbinate or campanulate, rarely cylindric, adnate to ovary. Sepals 5, persistent, short. Petals 5, erect or spreading, imbricate in bud, white, pink, or red. Stamens 10-20(-22), inserted in mouth of hypanthium. Ovary inferior or semi-inferior, 2-5-loculed; carpels 2-5, connate abaxially, free adaxially; ovules 2 per carpel, erect; styles 2-5, free; stigmas dilated. Fruit a drupe-like pome, red, brownish red, or orange to black, with persistent, incurved, fleshy sepals, containing pyrenes; pyrenes (1 or) 2-5, bony, 1-seeded; seeds compressed; cotyledons plano-convex.[43] [more]

Crassula

Crataegus

Shrubs, subshrubs, or small trees, deciduous, rarely evergreen, armed, rarely unarmed; buds ovoid or subglobose. Leaves simple, stipulate, venation craspedodromous, margin serrate and lobed or partite, rarely entire. Inflorescences corymbose, sometimes flowers solitary. Hypanthium campanulate. Sepals 5. Petals 5, white, rarely pinkish. Stamens 5-25; carpels 1-5, connate, but free apically. Ovary inferior or semi-inferior, with 2 ovules per locule, but one rudimentary. Fruit a pome, with persistent sepals at apex; carpels bony when mature, each locule with 1 seed; seed erect, cotyledons plano-convex.[44] [more]

Cryptotaenia

Herbs, perennial, essentially glabrous (minutely scabrous along leaf veins). Rootstock small, tuberous, branched. Stem terete, branched, purplish, base without remnant sheaths. Leaves petiolate, sheaths oblong, membranous, inflated; blade ternate; leaflets rhombic-ovate or subcordate, base broad-cuneate or cuneate, margin acute-biserrate. Umbels compound, grouped into a panicle, terminal; inflorescence branches and rays flexuose in flower, stiffening in fruit; bracts and bracteoles present or absent; rays several, very unequal; umbellules few-flowered; pedicels very unequal. Calyx teeth minute triangular. Petals white, obovate, apex incurved. Stylopodium long-conic, divided and tapering into the short, erect styles. Fruit elongate, oblong, slightly dorsally compressed, apex abruptly tapered, base rounded, glabrous; ribs 5, prominent, pale; vittae 13 in each furrow, 4 on commissure. Seed face plane. Carpophore 2-cleft to base.[45] [more]

Cucurbita

Annual or perennial herbs. Stem angular, hispid or hairy. Tendrils branched, mostly 2-4-fid. Leaves petiolate, ovate, generally 5-lobed, base cordate, hirsute or scabrescent. Flowers large, yellow, solitary; monoecious. Male flowers rarely fascicled. Calyx campanulate, lobes 5, subulate, spathulate or leafy. Corolla campanulate, shallowly 5-lobed, lobes usually recurved. Stamens 3, inserted low on the calyx tube. Filaments free, anthers linear and connate, one monothecous and two dithecous; connectives not produced. Pistillode absent. Female flowers shortly pedunculate. Ovary oblong, style simple, short, stigmas 3(5), papillose, ovules many, horizontal. Fruit fleshy, indehiscent, many-seeded. Seeds ovate or oblong, smooth, marginate or emarginate.[46] [more]

Cyananthus

[more]

Cypella

[more]

Cyperus

Herbs, perennial or less often annual, cespitose or not, rhizomatous, stoloniferous, rarely tuberous. Culms solitary or not, trigonous or round, glabrous or scabridulous with extrorse or antrorse (rarely retrorse) prickles. Leaves usually basal; ligules absent; blades keeled abaxially, flat, V-, or inversely W-shaped in cross section. Inflorescences terminal, rarely pseudolateral, 1st order subumbellate to capitate, 2d order with spicate or digitately arranged spikelets, rarely a solitary spikelet; spikelets 1-150; 1st order rays unequal (rarely equal) in length, produced singly from the axils of inflorescence bracts; involucral bracts 1-22, spirally arranged at culm apex, spreading to erect, leaflike. Spikelets: scales to 76, distichous, each subtending flower, cylindric to compressed, borne spicately or digitately at ends of rays (occasionally proliferous) . Flowers bisexual [rarely unisexual], in axils of distichous floral scales, bases often decurrent onto rachilla as ± hyaline wings; perianth absent; stamens 1-3; styles linear, 2-3-fid, base deciduous or persistent; stigmas 2-3. Achenes biconvex, flattened, or trigonous.[47] [more]

Cypripedium

Herbs, perennial. Roots closely to widely spaced along rhizome, slender, fleshy; rhizomes short to elongate. Stems leafy or scapose. Leaves alternate, in single radical pair, or subopposite near midpoint of stem, ascending to spreading, plicate, bases sheathing stem. Inflorescences terminal, solitary; flowers solitary or 2-several in lax racemose spike; bracts large, foliaceous. Flowers resupinate, showy; sepals distinct or lateral sepals usually connate proximal to lip forming synsepal; petals entire; lip inflated, slipper- or sac-shaped, with adaxial orifice; pollinaria absent; loose granular pollen in 2 lateral anthers, dorsal anther a large subapical staminode; stigma free, 2-3-lobed. Fruits capsules, ellipsoid to oblong-ellipsoid.[48] [more]

Dahlia

Dahlia is a of bushy, tuberous, perennial plants native to Mexico, Central America, and Colombia. There are at least 36 species of dahlia. Dahlia hybrids are commonly grown as garden plants. The Aztecs gathered and cultivated the dahlia for food, ceremony, as well as decorative purposes, and the long woody stem of one variety was used for small pipes. [more]

Daphne

Shrubs or subshrubs, evergreen or deciduous. Branches glabrous or pubescent. Leaves mostly alternate, sometimes opposite; petiole short. Inflorescence usually terminal, sometimes axillary, capitate or shortly racemose, sometimes paniculate, racemose, or spicate, with or without involucre; peduncle short or absent. Flowers bisexual or unisexual (plants sometimes dioecious), 4- or 5-merous. Calyx tube white, pink, or yellow, rarely mauve, campanulate, cylindric, or slightly funnel-shaped, exterior glabrous or pubescent; lobes 4 or 5, erect or spreading, alternately longer and shorter. Petaloid appendages absent. Stamens twice as many as calyx lobes, in two series; filaments short or absent; anthers oblong, included; connectives indistinct. Disk absent or annular, cup-shaped, sometimes elongated on one side. Ovary usually sessile or slightly stipitate, ovoid, 1-loculed; style terminal, short; stigma capitate. Fruit a succulent berry or dry and leathery, sometimes enclosed by persistent calyx, sometimes naked, usually red or yellow. Seed testa crustaceous, endosperm scanty or absent; cotyledons fleshy.[49] [more]

Daphniphyllum

Daphniphyllum is a genus of in the family Daphniphyllaceae, including about 25 species, all evergreen shrubs and trees native to east and southeast Asia. In older classifications the genus was treated in the family Euphorbiaceae. [more]

Davallia

Davallia (deersfoot fern, hare's foot fern) is a genus of about 40 species of in the family Davalliaceae. They are epiphytic ferns, with fronds arising from long aerial rhizomes which grow on and over thick bark on trees or on rock crevices. [more]

Debregeasia

Shrubs or small trees, without stinging hairs. Leaves alternate, petiolate; stipules deciduous, intrapetiolar, connate, membranous, 2-cleft; leaf blade thinly papery or papery, 3-veined, often snow white or silvery tomentose abaxially, margin serrulate; cystoliths punctiform. Inflorescences axillary, densely capitate clusters of unisexual