|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.
Annual to shrubs, glabrous or hairy; sap milky
Stems branched, 0.53 m
Leaves cauline or some basal, alternate
Inflorescence: heads ligulate; involucre cylindric; phyllaries in 2several series; receptacle naked
Flowers fewmany; ligules lavender, pink, or whitish, readily withering
Fruit linear, club-shaped, or oblong; pappus generally of 930 stiff, plumose bristles
Species in genus: 24 species: w North America
Etymology: (Greek: wreath division)
Reference: [Gottlieb 1972 Madroño 21:463481]
Annual, tap-rooted, rosette-forming species highly variable and complexly interrelated.
Perennial from creeping rhizome, 13 dm; herbage glabrous
Leaves 28 cm, linear to lanceolate, few-toothed
Inflorescence: heads few on separate peduncles; involucre 1215 mm; outer phyllaries erect, << inner; inner phyllaries 811
Flowers 710; ligules 811 mm, pink
Fruit 56 mm, ± 45-angled, grooved between angles; pappus bristles plumose, thicker and fused at base, white
Ecology: Dry forests
Elevation: 9002400 m.
Bioregional distribution: Klamath Ranges, Outer North Coast Ranges, High Cascade Range, n&c High Sierra Nevada, Modoc Plateau
Distribution outside California: Oregon
Horticultural information: TRY; DFCLT.