|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
For up-to-date information about California vascular plants, visit the Jepson eFlora.
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]
Annual or biennial < 10 dm, ± soft-hairy and glandularSee the CNPS Inventory for information about endangerment and rarity.
Leaves: basal 515 cm, coarsely toothed
Inflorescence: heads generally 20 mm, 20 mm wide; phyllaries 812 mm, linear-lanceolate, narrowly acuminate
Ray flowers 2035; corollas 1218 mm, 35 mm wide
Fruit 46 mm, sparsely hairy; pappus scales 12 mm, ± equal
Ecology: Burns, disturbed sites
Elevation: 1200 m.
Bioregional distribution: se Peninsular Ranges (se San Diego Co.)
Distribution outside California: Baja California
|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).|