|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.
Perennial from ± woody caudex or shrub (rarely annual)
Leaves alternate or opposite, simple, veiny, generally resinous-dotted
Inflorescence: heads discoid, generally clustered; involucre cylindric to bell-shaped; phyllaries overlapping, strongly nerved; receptacle generally flat, chaff 0
Flowers: corollas cylindric, ± white or tinged red; anther bases rounded or slightly cordate, tips ovate; style branches long, club-shaped, tips rounded
Fruit 10-ribbed, generally cylindric, hairy; pappus generally of many, generally scabrous bristles
Etymology: (John Brickell, early botanist in Georgia)
Reference: [King & Robinson 1987 Monogr Syst Bot Missouri Bot Gard 22:220224]
Shrub 24 dm
Stems much-branched, zigzag, glandular-puberulent
Leaves alternate, subsessile, 12 cm, ovate, leathery, prominently toothed or entire, scabrous, generally glandular-puberulent
Inflorescence: heads 1315 mm, solitary; involucre bell-shaped; phyllaries 2633, overlapping to subequal; outer lance-ovate, ± entire to dentate, inner linear, 413-nerved, greenish, generally minutely scabrous, tips erect
Fruit 4 mm
Ecology: Rocky places
Elevation: < 1500 m.
Bioregional distribution: Desert
Distribution outside California: n Baja California
Perhaps same as B. atractyloides.
|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).|