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 to shrub
Stems erect, often densely clustered
Leaves alternate, sessile, entire
Inflorescence: heads discoid, arrayed in ± dense cymes, peduncled or subsessile; involucre generally cylindric; phyllaries generally in 35 series (± 5 vertical ranks), free, overlapping, keeled; receptacle naked
Flowers 220 (often 5) per head; corollas generally yellow, lobes 0.53 mm, generally spreading; style branches long, slender, generally exserted
Fruit narrowly cylindric, ± 5-ridged, generally light brown; pappus of many white to brownish bristles
Species in genus: 16 species: sw Can to n Mex
Etymology: (Greek: golden shrub)
Closely related to (perhaps part of) Ericameria.
Native |
Subshrub or shrub, 19 dm
Stems prostrate to erect, white to green, tomentose
Leaves 17 cm, generally < 4 mm wide, thread-like to ± oblanceolate, ± glabrous to tomentose
Inflorescence: heads generally ± many, in long or rounded cymes; involucre 1018 mm, widely cylindric; phyllaries ± lanceolate, weakly 5-ranked, keeled, ± membranous, tips green
Flowers 518; corollas 812.5 mm; style appendage > stigma
Fruit 47 mm, hairy; pappus generally < corolla
Chromosomes: 2n=18
Ecology: Dry places, generally open forest
Elevation: 7003700 m.
Bioregional distribution: Klamath Ranges, North Coast Ranges, Cascade Range, High Sierra Nevada, San Bernardino Mountains, Great Basin Floristic Province, Desert Mountains
Distribution outside California: to s Oregon, Colorado, Arizona
12 subspp. in w US.
Native |
Stems slender
Leaves 35 cm, green; glands 0
Inflorescence: cymes, dense, much-branched; phyllaries long-tapered, generally straight, straw-colored
Flowers 67
Ecology: Uncommon. Rocky slopes, sagebrush flats
Elevation: 14003200 m.
Bioregional distribution: c&s High Sierra Nevada.