TREATMENT FROM THE JEPSON MANUAL (1993) |
previous taxon |
next taxon
Jepson Interchange (more information) |
|
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
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 perennial herb
Stems 15, 115 dm, ± hairy, glandular
Leaves alternate; petioles generally ciliate; blades generally ± oblanceolate, entire to lobed, ± reduced upward
Inflorescence raceme-like; heads radiate, 1many; bracts ± narrowly lanceolate; involucre hemispheric to obconic; phyllaries many, in 23 series, linear to obovate, green, ± glandular; receptacle naked
Ray flowers: ligules yellow to red
Disk flowers many; corollas 59 mm, yellow to orange, generally glabrous
Fruit 410 mm, linear to club-like, black, ± hairy; pappus scales generally 2 pairs, 410 mm, generally deeply cut, generally translucent
Species in genus: ± 8 species: w US
Etymology: (G.W. Hulse, US Army surgeon, botanist, 18071883)
Reference: [Wilken 1977 Madroño 24:4855]
Self-sterile.
Native |
Perennial generally 110 dm
Stems generally leafy in lower 1/31/2
Leaves: basal < 8 cm, 13 cm wide, spoon-shaped, entire to lobed, woolly above; cauline few
Inflorescence: heads < 15 mm, < 12 mm wide; bracts lanceolate to ovate, glandular, ± long-soft-hairy; phyllaries 811 mm, oblong to obovate, acuminate, hairy
Ray flowers 932; corollas 518 mm, 25 mm wide, yellow to red, puberulent
Fruit 57 mm, moderately hairy; pappus 12 mm, generally ± equal
Ecology: Open gravel, talus slopes
Elevation: 13003900 m.
Bioregional distribution: c&s High Sierra Nevada, Transverse Ranges, Peninsular Ranges, East of Sierra Nevada, Desert Mountains
Distribution outside California: Nevada
Sspp. generally geog separated.
Native |
Plant generally > 5 dm
Leaves: petiole generally < blade, green; basal leaves entire to weakly scalloped
Inflorescence: bracts sometimes barely woolly; phyllary tips green or red-tinged
Flowers yellow to orange; ray corollas 610 mm
Chromosomes: 2n=38
Ecology: Montane chaparral, pine forest
Elevation: 13002500 m.
Bioregional distribution: n Peninsular Ranges
Synonyms: H. c. (H.M. Hall) Rydb
Intergrades with H. californica.