|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
previous taxon |
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, perennial herb
Stems creeping or decumbent, spreading by stolons or rhizomes
Leaves generally pinnately lobed; basal in loose rosettes; cauline alternate
Inflorescence: heads radiate, solitary, long-peduncled; phyllaries overlapping in 36 series; receptacle flat, naked
Ray flowers generally sterile; ligules yellow
Disk flowers many; corolla funnel-shaped; stamen tips ovate-triangular, bases minutely sagittate; style slender below, thickened above a minutely hairy node, branches very short
Fruit 35-ribbed, glabrous or woolly; pappus of scales or 0
Species in genus: ± 6 species: s Africa, Australia
Etymology: (Greek: bear container)
Stems creeping to decumbent, ribbed, soft, ± juicy, tomentose
Leaves 525 cm, pinnately lobed, or upper nearly entire; upper surface finely cobwebby; lower surface densely white-woolly
Inflorescence: heads ± 5 cm diam; peduncles scapose, 1520 cm; outer phyllaries green, woolly, tips reflexed
Ray flowers < 20; ligules yellow above, greenish or purplish below
Disk flowers many, purplish or yellow
Fruit ± 3 mm, covered with woolly hairs; pappus scales ± obscured by woolly hairs
Ecology: Disturbed, urban, coastal habitats
Elevation: < 250 m.
Bioregional distribution: North Coast, San Francisco Bay Area
Distribution outside California: native to s Africa
A vegetatively reproducing race is cultivated, sometimes escapes; Weedy.
|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).|