|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Annual to tree
Leaves basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1many per head
Flowers bisexual, unisexual, or sterile, ± small, of several types; calyx 0 or modified into pappus of bristles, scales, or awns, which is generally persistent in fruit; corolla radial or bilateral (rarely 0), lobes generally (0)45; stamens 45, anthers generally fused into cylinder around style, often appendaged at tips, bases, or both, filaments generally free, generally attached to corolla near throat; pistil 1, ovary inferior, 1-chambered, 1-seeded, style 1, branches 2, generally hair-tufted at tip, stigmas 2, generally on inside of style branches
Fruit: achene, cylindric to ovoid, generally deciduous with pappus attached
Genera in family: ± 1300 genera, 21,000 species (largest family of dicots): worldwide. Largest family in CA. Also see tribal key to CA genera: Strother 1997 Madroño 44(1):128. See glossary p. 25 for illustrations of general family characteristics.
Perennial; sap milky; herbage generally long-hairy
Stems erect, 110 dm
Leaves basal or cauline, alternate
Inflorescence: heads ligulate, fewmany in cymes or panicles; involucre cylindric; phyllaries in 24 series of different lengths; receptacle naked
Flowers fewmany; ligules yellow, white, or orange, readily withering
Fruit cylindric, slender; pappus of many slender bristles, brittle, dull white, tawny, or brownish
Species in genus: ± 250 species: ± worldwide
Etymology: (Greek: hawk)
Many reproduce only by asexual seeds.
Stems 24 dm, densely stellate-tomentose and coarsely long-hairy below
Leaves: basal and lower cauline 510 cm, oblong-oblanceolate, nearly entire or with blunt teeth, densely covered with stellate hairs and long, simple hairs; upper leaves much reduced
Inflorescence: heads severalmany, in open cymes or panicles; involucre 810 mm, narrow
Flowers 815; ligules yellow
Fruit 56 mm, 10-ribbed; pappus deep tawny
Ecology: Dry slopes in montane forest
Elevation: 9002750 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Cascade Range
Distribution outside California: Oregon
Horticultural information: TRY.