|University of California, Berkeley|
|Directory News Site Map Home|
Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Annual or perennial herb, ± glandular and/or with segmented hairs.
Stem: 0, or prostrate and creeping with adventitious roots at nodes, or shortly decumbent to erect, ribbed, white-cobwebby.
Leaf: alternate, basal in rosettes and/or cauline, petioled, (2)5–20(30+) cm, (1)2–5(7) cm wide, [ ovate] obovate to spoon-shaped, ± deeply pinnately lobed, ultimate margin ± dentate-prickly [ entire or shallowly toothed] or distal ± entire, adaxially finely cobwebby [densely woolly], abaxially densely white-woolly.
Inflorescence: heads radiate, 1, peduncled; phyllaries graduated in 3–6 series, proximal narrowed to spreading or reflexed, awn-like, tips fringed, distal with expanded membranous tips; receptacle flat, ± pitted, pit margins with short, membranous scales, epaleate.
Ray flower: sterile; ray adaxially yellow throughout or with ± deeper yellow proximal band (dried rays yellow or proximally ± white with distal blue margin and distally blue to ± brown-purple), abaxially yellow to ± blue, red, or purple; style 0.
Disk flower: corolla yellow throughout, or distally ± green to ± black; anther tip ovate-triangular; style tip proximally slender, thickened distal to a minutely hairy node, branches minute.
Fruit: obovoid- elliptic, compressed, 4–5-ribbed, faces roughened, woolly to ± glabrous, occasionally with proximal cluster of segmented hairs; pappus of [2–3] 6–10 scales < fruit, crown-like, or 0.
5 species: native s Africa. (Greek: bear-capsule, probably for woolly fruit) [Mahoney 2006 FNANM 19:197]
Unabridged references: [McKenzie et al. 2005 Ann Missouri Bot Gard 92:569–594]
1. Annual from rosette, initially stless, later stems short-decumbent to ± erect, branched in age, rarely rooting at stem bases; ray 6–15(22) mm; disk corolla proximally yellow, distally ± green to black ..... A. calendula
1' Perennial from rosette, initially stless, later spreading by creeping stems, rooting at nodes, forming new rosettes; ray (20)25–40 mm; disk corolla yellow throughout ..... A. prostrata
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.