font settings

Font Size: Large | Normal | Small
Font Face: Verdana | Geneva | Georgia

ZipcodeZoo.com needs to raise another $12,000 in donations by January 1 to continue operation in 2009.
If we cannot meet this goal, this site will go offline January 1. Please click here to donate

Spiraeeae

(Tribe)

Overview

[ Back to top ]
A Tribe in the Kingdom Plantae.

Photos

[ Back to top ]

Taxonomy

[ Back to top ]

The Tribe Spiraeeae is a member of the Subfamily Spiraeoideae. Here is the complete "parentage" of Spiraeeae:

The Tribe Spiraeeae is further organized into finer groupings including:

Genera

[ Back to top ]

Abutilon

Herbs, subshrubs, shrubs, or small trees. Stipules usually caducous; leaf blade usually entire (lobed in A. pictum), palmately veined, base cordate, margin crenate or serrate. Flowers axillary or subterminal, solitary, paired or in small cymes, often aggregated into terminal panicles. Epicalyx absent. Calyx campanulate, lobes 5. Corolla mostly yellow or orange (red in A. roseum), often with dark center, campanulate to wheel-shaped, rarely ± tubular (A. pictum) ; petals 5, basally connate and adnate to filament tube. Anthers many, clustered at filament tube apex. Ovary (5-) 7-20-loculed; ovules 2-9 per carpel; style branches as many as carpels. Fruit a schizocarp, often blackish when mature, subglobose to hemispherical; mericarps (5-) 7-20, eventually dehiscent, apex rounded or acute, sometimes 2-awned, pericarp leathery. Seeds reniform, glabrous or slightly pubescent.[517] [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.[518] [more]

Acer

[more]

Aciphylla

Aciphylla is a genus of about 40 of plants in the Apiaceae family, endemic to New Zealand and Australia. They generally grow as tall spikes surrounded by rosettes of stiff, pointed leaves. [more]

Actiniopteris

[more]

Ada

[more]

Aeschynanthus

Shrubs or climbers, epiphytic or epipetric, not rhizomatous. Stems often pendent, branched or unbranched. Leaves usually many, along stem, opposite, sometimes whorled, equal to subequal in a pair; leaf blade glabrous, rarely puberulent or pubescent, base cuneate to rounded or attenuate. Inflorescences umbel-like, lax or sometimes dense, axillary or pseudoterminal, 1-10-flowered cymes; bracts 2, opposite. Calyx actinomorphic, 5-sect from base to 5-lobed; segments equal, rarely unequal. Corolla red to orange, seldom greenish, yellow, or white, zygomorphic, inside sparsely puberulent, sparsely glandular puberulent, glabrous, or with a hair ring; tube narrowly tubular to funnelform-tubular, often curved, not swollen, much longer than limb, 0.4-1.5 cm in diam.; limb indistinctly or distinctly 2-lipped; adaxial lip 2-lobed; usually equalling, occasionally to 1/2 X length of abaxial lip; abaxial lip 3-lobed, lobes equal or subequal, apex rounded to acute. Stamens 4, adnate to corolla tube near or above middle, usually exserted; anthers basifixed, usually coherent in pairs at apex, thecae parallel, not confluent, dehiscing longitudinally; connective not projecting; staminode 1 or absent, adnate to adaxial side of corolla tube. Disc ringlike. Ovary linear, 1-loculed; placentas 2, parietal, projecting inward, 2-cleft. Stigma 1, terminal, capitate to depressed-globose, undivided. Capsule straight in relation to pedicel, linear, much longer than calyx, dehiscing loculicidally to base; valves 2 or 4, straight, not twisted. Seeds with 1(or 2-50) hairlike appendages, opposite end with 1 hairlike appendage, seldom 1 linear appendage at each end.[519] [more]

Aesculus

Trees or shrubs, deciduous. Winter buds large, viscid resinous or not, with several pairs of imbricate scales; scales abaxially glabrous or sparsely puberulent. Leaf blade 5-11-foliolate; leaflet blades without scattered, conspicuous glands, margin crenate to serrate or compoundly so. Thyrse cylindric or conic; branches simple; bracts absent. Flowers often large and showy. Sepals connate to form a tubular to campanulate calyx tube. Petals often unequal, base clawed, limb obovate, oblong, oblanceolate, or spatulate. Ovary without a gynophore; style long, slender; stigma depressed globose, entire or obscurely lobed. Capsule depressed globose to pyriform, without a long gynophore, often 1-seeded; pericarp usually smooth, often dotted, rarely verrucose or prickly. Seeds depressed globose to pyriform, large (2-7 cm) ; testa brown; hilum large, pale, occupying 1/3-1/2 of seed. x = 20.[520] [more]

Agastache

Herbs tall perennials. Leaves petiolate, margin dentate. Verticillasters many flowered, in terminal spikes. Calyx tubular-obconical, straight, 15-veined, not hairy annulate inside, throat oblique. Corolla tube straight, gradually dilated to throat, as long as to slightly longer than calyx, not hairy annulate inside, 2-lipped; upper lip straight, 2-lobed; lower lip spreading, 3-lobed, middle lobe widest, spreading, base not clawed, margin undulate, lateral lobes straight. Stamens 4, fertile, much exserted, posterior 2 longer and inclined forward, anterior 2 erect-ascending; anther cells 2, initially almost parallel, later ± divergent. Style subequally 2-cleft. Nutlets smooth, apex hairy.[521] [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.[522] [more]

Alliaria

Herbs annual or biennial, rarely short-lived perennial. Trichomes absent or simple. Stems erect, sometimes decumbent. Basal leaves long petiolate, rosulate, simple, crenate, dentate, or sinuate. Cauline leaves petiolate, dentate. Racemes several flowered, ebracteate, bracteate throughout, or only basally bracteate. Fruiting pedicels slender or thickened, narrower than or as thick as fruit, terete. Sepals oblong, erect, glabrous, base of lateral pair not saccate. Petals white, longer than sepals; blade oblanceolate, apex obtuse; claw obscurely differentiated from blade. Stamens 6, slightly tetradynamous; filaments not dilated at base; anthers ovate or oblong, obtuse at apex. Nectar glands confluent, subtending bases of all stamens. Ovules 4-20 per ovary. Fruit dehiscent siliques, linear or oblong, terete or 4-angled, sessile; valves with a prominent midvein and distinct marginal veins, glabrous or scabrous, torulose; replum rounded; septum complete; style obsolete or distinct and to 6 mm; stigma capitate. Seeds uniseriate, wingless, oblong, plump; seed coat longitudinally striate, not mucilaginous when wetted; cotyledons incumbent.[523] [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.[524] [more]

Alnus

Trees or shrubs, to 35 m; trunks usually several, branching excurrent to deliquescent. Bark of trunks and branches light gray to dark brown, thin, smooth, close; lenticels often present, pale, prominent, sometimes horizontally expanded. Wood nearly white, turning reddish upon exposure to air, moderately light and soft, texture fine. Branches, branchlets, and twigs nearly 2-ranked to diffuse; young twigs uniform or ( Alnus subg. Alnobetula ) differentiated into long and short shoots. Winter buds stipitate (nearly sessile in Alnus subg. Alnobetula ), narrowly to broadly ovoid or