TREATMENT FROM THE JEPSON MANUAL (1993) |
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©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
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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.
Native |
Stolons 0
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
Chromosomes: 2n=18
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.