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 < 5 m diam, ± mat-forming
Leaves generally crowded at branch tips, persistent for 23 years, < 10 cm, linear to oblanceolate, generally rigid, entire, scabrous; petiole indefinite
Inflorescence: head radiate, solitary; peduncles < 15 cm, naked; involucre 510 mm, hemispheric; phyllaries in 23 series, linear to ± ovate, acute to acuminate
Ray flowers 615; ligules 712 mm, yellow
Disk flowers 2550; corollas 67.5 mm, funnel-shaped, yellow
Fruit 3.57 mm, generally densely silky; pappus of soft bristles
Species in genus: ± 5 species: w North America
Etymology: (Greek: narrow ear)
Native |
Leaves 210 cm, oblanceolate, generally 3-veined, glabrous to short-bristly, sometimes sticky
Inflorescence: involucre 610 mm
Ray flowers 615, 812 mm
Disk flowers: corollas 67.5 mm, tube glabrous
Fruit glabrous or densely silky; pappus white or tan
Ecology: Dry, rocky open scrub
Elevation: 19003200 m.
Bioregional distribution: Cascade Range, Sierra Nevada, Great Basin Floristic Province, Desert Mountains
Distribution outside California: to Washington, Montana, Wyoming, Colorado, Utah
Flowering time: MayAug
Synonyms: Haplopappus a. (Nutt.) A. Gray
Horticultural information: TRY; DFCLT.