|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 210 cm, generally loosely woolly
Leaves alternate (or lowest opposite), simple
Inflorescence: heads solitary, radiate; involucre subcylindric; phyllaries in 1 series, spreading in fruit, oblanceolate, acute, alternate phyllaries scarious-margined; receptacle convex, naked
Ray flowers 1 per phyllary; ligules 3-lobed, yellow (or white and red-veined)
Disk flowers narrowly funnel-shaped, yellow, glabrous; stamen tips narrowly triangular
Fruit narrowly obconic; pappus 0, or of many bristles fused at base
Species in genus: 2 species: sw US
Etymology: (Greek: fused bristly pappus)
Reference: [Johnson 1991 Novon 1:119124]
Horticultural information: TRY.
Plant ± erect, sometimes becoming glabrousSee the CNPS Inventory for information about endangerment and rarity.
Leaves 38 mm, linear; tips obtuse
Inflorescence: peduncles 315 mm, reddish; involucre 45 mm; phyllaries 58
Ray flowers: ligules 23 mm, white above, pinkish purplish below, red-veined
Fruit 22.5 mm, (sub)glabrous; pappus 0 or of < 30 bristles, ± 1 mm
Ecology: UNCOMMON. Open, sandy to gravelly areas
Elevation: 9001500 m.
Bioregional distribution: Inner South Coast Ranges (Monterey Co.), e Western Transverse Ranges, San Gabriel Mountains, San Bernardino Mountains, San Jacinto Mountains.