|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.
Shrubs < 50 dm, resinous, generally gland-dotted
Leaves < 10 cm, thread-like to wedge-shaped, entire
Inflorescence various; heads radiate or discoid; involucre 314 mm, obconic to hemispheric; phyllaries in 26 series, ± lanceolate to ovate, generally resinous, tips erect to recurved, obtuse to acuminate or tailed, midrib often thickened with a resin gland
Ray flowers 030; corollas 212 mm, generally yellow
Disk flowers 470+; corollas 311 mm, yellow
Fruit 28 mm, ribbed; pappus white to brown
Species in genus: ± 27 species: w North America
Reference: [Nesom 1990 Phytologia 68:144155]
Generally flowers summer/autumn. Some species hybridize with Chrysothamnus nauseosus.
Plant 1020 dm, ± glabrous, gland-dotted
Leaves crowded, 1025 mm, thread-like, obtuse to ± acute, curled under
Inflorescence: heads discoid, in raceme-like or narrowly panicle-like clusters at ends of leafy branchlets; peduncles 520 mm; involucre 4.55.5 mm, 46 mm diam, obconic; phyllaries 1622 in 34 series, linear to ovate, obtuse to acute, midrib brown, resinous, margin white-scarious, minutely ciliate
Disk flowers 914; corollas 67 mm
Fruit < or = 5 mm, densely soft-hairy; pappus 67 mm, ± white
Elevation: < 1400 m.
Bioregional distribution: s Peninsular Ranges, s South Coast
Distribution outside California: n Baja California
Synonyms: Haplopappus propinquus S.F. Blake
|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).|