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Potentilleae

(Tribe)

Overview

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A Tribe in the Kingdom Plantae.

Photos

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Taxonomy

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The Tribe Potentilleae is a member of the Subfamily Potentilloideae. Here is the complete "parentage" of Potentilleae:

The Tribe Potentilleae is further organized into finer groupings including:

Genera

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Acanthus

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Acer

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Achimenes

Achimenes is a of about 25 species of tropical and subtropical rhizomatous perennial herbs in the flowering plant family Gesneriaceae. They have a multitude of common names such as Magic Flowers, Widow's Tears, Cupid's Bower, or Hot Water Plant. The plant's name comes from the Greek word meaning "suffer from cold." [more]

Aconitum

Herbs, perennial, from tubers or elongate, fascicled roots. Leaves basal and cauline, proximal leaves petiolate, distal leaves sessile or nearly so; cauline leaves alternate. Leaf blade palmately divided into 3-7 segments, ultimate segments narrowly elliptic or lanceolate to linear, margins incised and toothed. Inflorescences terminal, sometimes also axillary, 1-32(-more) racemes or panicles, to 28 cm; bracts leaflike, not forming involucre. Flowers bisexual, bilaterally symmetric; sepals not persistent in fruit; lower sepals (pendents) 2, plane, 6-20 mm; lateral sepals 2, round-reniform; upper sepal (hood) 1, saccate, arched, crescent-shaped or hemispheric to rounded-conic or tall and cylindric, usually beaked, 10-50 mm; petals 2, distinct, bearing near apex a capitate to coiled spur, concealed in hood, long-clawed; nectary present, on spur; stamens 25-50; filaments with base expanded; staminodes absent between stamens and pistils; pistils 3(-5), simple; ovules 10-20 per pistil; style present. Fruits follicles, aggregate, sessile, oblong, sides prominently transversely veined; beak terminal, straight, 2-3 mm. Seeds deltoid, usually with small, transverse, membranous lamellae. x =8.[1] [more]

Acorus

Herbs, wetlands or rocky stream banks, when bruised or broken producing pleasant and distinctive aromatic odor. Leaves bright green; sheathing base 2-facial (proximal part of leaf) ; distal part of leaf 1-facial, flattened in median rather than transverse plane; prominent veins 1--6, parallel along length of leaf. Inflorescences solitary. Flowers: tepals light brown; anthers yellow, introrse; ovariesy green. Fruits light brown to reddish with darker streaks. Seeds embedded in mucilage. x = 12.[2] [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.[3] [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.[4] [more]

Aphanes

Aphanes (Parsley-piert) is a genus in the rose family, , native to Europe, Asia and Australia. A study from 2003 (see Rosoideae) indicates that Aphanes may belong to the genus Alchemilla, commonly called Lady's-mantle. They are slender, annual prostrate herbs, much-branched with deeply lobed leaves, pilose (covered with soft hair) and on short petioles. The tiny green to yellow flowers without petals grow in clusters in the denticulate leaflike stipules. Field Parsley-piert is sometimes used as a herbal remedy against kidney and bladder calculi. It acts as a potent diuretic and antilithic. [more]

Argentina

A Genus in the Kingdom Animalia. [more]

Berkheya

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Calandrinia

Herbs, annual, not rhizomatous or stoloniferous. Stems prostrate to erect, branched; nodes glabrous. Leaves alternate, not articulate at base, somewhat to markedly clasping, attachment points linear; blade linear to oblanceolate, or ovate to spatulate, flattened, glabrous or with elongate unicellular hairs. Inflorescences racemose, somewhat to markedly secund (at least distally), elongate, bracteate; bracts leaflike. Flowers pedicellate; sepals persistent in fruit, imbricate, green, distinctly angled or keeled, ovate, herbaceous, glabrous or with elongate, unicellular hairs; petals usually 5, red; stamens 3-15, usually opposite petals, not adnate to petals; ovules 6-many; style present; stigmas 3. Capsules 3-valved, longitudinally dehiscent from apex, valves not deciduous, reflexed after dehiscence, margins markedly involute; endocarp and exocarp not separating. Seeds 10-20, black, ± ellipsoid, reticulate or tuberculate viewed at 30×, glabrous, estrophiolate. x = 12.[5] [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.[6] [more]

Comarum

Herbs perennial or subshrubs. Flowering stems erect or ascending. Leaves alternate; leaf blade imparipinnate. Flowers bisexual, in cymes. Hypanthium almost flat or slightly saucer-shaped, enlarging in fruit. Sepals 5, persistent; epicalyx segments 5, persistent. Petals 5, red, dark purple, or white. Stamens 15-25; filaments filiform, persistent; anthers compressed globose, dehiscing by marginal slits, base cordate. Fruiting receptacle enlarged, ellipsoid or hemispheric, spongy. Carpels numerous; style lateral, filiform. Achenes glabrous or hairy. x = 7.[7] [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]

Cordyline

Plants treelike or shrubby. Stems ± woody, usually few branched, with conspicuous leaf scars distally. Leaves crowded at apex of stems, petiolate (or sessile) ; petiole 10--30 cm, base amplexicaul; leaf blade elliptic-lanceolate to sword-shaped, veins essentially parallel but with lateral veins branching from midvein in proximal 1/2. Inflorescence arising from axils of distal leaves, usually paniculate, large, many branched. Flowers bisexual, solitary, usually tubular-campanulate or subcylindric; pedicel usually short, articulate at or near apex. Perianth with short tube; lobes in 2 whorls of 3. Stamens 6, inserted in tube or throat of perianth; anthers versatile. Ovary 3-loculed; ovules 2 to many per locule. Style slender; stigma capitate, small. Fruit a capsule, leathery, 1- to several seeded. Seeds black, coated with phytomelanin.[8] [more]

Cupressus

Trees or large shrubs evergreen. Branchlets terete or quadrangular, in decussate arrays (or partially comblike in Cupressus macnabiana ). Leaves opposite in 4 ranks. Adult leaves appressed to divergent, scalelike, rhomboid, free portion of long-shoot leaves to 4 mm; abaxial gland present or absent. Pollen cones with 4--10 pairs of sporophylls, each sporophyll with 3--10 pollen sacs. Seed cones maturing in 1--2 years, generally persisting closed many years or until opened by fire, globose or oblong, 1--4 cm; scales persistent, 3--6 pairs, valvate, peltate, thick and woody. Seeds 5--20 per scale, lenticular or faceted, narrowly 2-winged; cotyledons 2--5. x = 11.[9] [more]

Cyathea

Cyathea is a of tree ferns, the type genus of the fern order Cyatheales. They are mostly terrestrial ferns, usually with a single tall stem. Rarely, the trunk may be branched or creeping. Many species also develop a fibrous mass of roots at the base of the trunk. The genus has a pantropical distribution, with over 470 species. They grow in habitats ranging from tropical rain forests to temperate woodlands. [more]

Cyphomandra

Cyphomandra was a in the flowering plant family Solanaceae (the nightshades and relative). It used to contain about 35 species native to countries of the Americas from Mexico southwards to Northern Argentina. [more]

Dasiphora

Dasiphora is a of three species of shrubs in the rose family Rosaceae, native to Asia, with one species D. fruticosa (Shrubby Cinquefoil), with a circumpolar range across the entire cool temperate Northern Hemisphere. In the past, the genus was normally included in Potentilla as Potentilla sect. Rhopalostylae, but genetic evidence has shown it to be distinct. [more]

Dasylirion

Plants perennial, polycarpic; roots spreading, 2-8 mm diam. Stems short or elongate, often with erect or reclining trunk. Leaves persistent, numerous, forming rosettes, spreading; blade long-linear, fibrous, glabrous, sometimes waxy-glaucous, bases expanded, overlapping, spoon-shaped, margins with sharp, curved prickles, apex fibrous. Inflorescences paniculate, racemose, bracteate; panicles narrow, borne on long, woody stalks; bracts leaflike proximally, stramineous distally, lanceolate; fascicles of dense racemes in axils of bracts. Flowers small, functionally unisexual, some plants with only male flowers, others with only female flowers; floral bracts laciniate, membranous; tepals 6, distinct, whitish, greenish, or purple, obovate, margins denticulate; stamens 6, rudimentary in pistillate flowers; ovary superior, 3-angled, abortive in staminate flowers; style short, ± strap-shaped, slightly expanded at tip; stigma 3-lobed, lobes weakly connate into tube; pedicel of pistillate flowers articulate. Fruits capsular, 1-locular, dry, indehiscent, 3-winged. Seed 1, golden brown, 3-angled, turbinate. x = 19.[10] [more]

Dracaena

Plants treelike, shrubby, or subshrubby. Stems simple or branched, woody. Leaves crowded toward apex of stems or spaced along distal part of stems, sessile or petiolate; petiole to 8 cm, base amplexicaul; leaf blade usually sword-shaped to elliptic-lanceolate, veins truly parallel from base, lateral veins absent. Inflorescence terminal, branched, rarely simple. Flowers bisexual, clustered, sometimes solitary; pedicel articulate. Perianth cylindric, campanulate, or funnelform; tube short; lobes 6, similar. Stamens 6, inserted in tube or throat of perianth; anthers versatile. Ovary 3-loculed; ovules 1 or 2 per locule. Style slender; stigma capitate or 3-lobed. Fruit a berry, globose, 1--3-seeded. Seeds not coated with phytomelanin.[11] [more]

Duchesnea

Herbs perennial. Rhizome short. Stolons procumbent, long, filiform, bearing adventitious roots and forming plantlets at nodes. Radical leaves several, stolon leaves alternate, long petiolate; stipules paired, adnate to base to petiole, persistent; leaf blade 3-foliolate; leaflets dentate at margin. Inflorescence axillary, ebracteate, a solitary flower. Sepals 5, persistent; epicalyx segments 5, larger than and alternating with sepals, margin incised. Petals 5, yellow, obovate. Stamens numerous; anthers subglobose. Carpels numerous, free, inserted on convex