This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants.
|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press
|The second edition of The Jepson Manual (2012) is available from the University of California Press|
|See also the Jepson eFlora, which parallels the Second Edition|
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 subshrub
Leaves alternate, linear to oblanceolate, entire
Inflorescence: heads radiate, solitary; phyllaries in 26 series, outer < inner, margins translucent, papery; receptacle ± flat, chaff 0
Ray flowers 524; ligules coiled at maturity, white to blue or pink-purple
Disk flowers 5many; corollas yellow; anther tips triangular; style tips triangular
Fruit generally linear-fusiform, round or ± compressed; pappus 0 or of scales, bristles, or both
Species in genus: ± 10 species: sw US, n Mex
Etymology: (Greek: bristle-pappus)
Reference: [Nesom 1988 Phytologia 64:448456]
Perennial to subshrub; caudex ± woody
Stems ascending to erect, 515 cm, generally branched, strigose, ± glandular
Leaves basal and cauline (basal 0 at flower), 412 mm, linear to obovate, obtuse to abruptly pointed, ± glandular, bristly-hairy below
Inflorescence: phyllaries lanceolate to oblong, acute to acuminate, green, ± purple-tipped
Ray flowers generally 1221; corolla 510 mm, white to ± pink
Fruit ± rounded, brown, hairy; pappus of minutely barbed bristles, ± white
Ecology: Dry slopes
Elevation: 13002900 m.
Bioregional distribution: Sierra Nevada (e slope), White and Inyo Mountains, Desert Mountains
Distribution outside California: to NE, Texas, n Mexico
Flowering time: AprMay
Synonyms: Leucelene e. (Torr.) Greene
Horticultural information: TRY.
|YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).|