This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants.
|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL||
previous taxon |
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press
|The second edition of The Jepson Manual (2012) is available from the University of California Press|
|See also the Jepson eFlora, which parallels the Second Edition|
Annual to tree
Leaves simple to pinnately to palmately compound, generally alternate; stipules free to fused, persistent to deciduous
Inflorescence: cyme, raceme, panicle, or flowers solitary
Flower generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, often with bractlets alternate with sepals; sepals generally 5; petals generally 5, free; stamens (0)5many, pistils (0)1many, simple or compound; ovary superior to inferior, styles 15
Fruit: achene, follicle, drupe, pome, or blackberry- to raspberry-like
Seeds generally 15
Genera in family: 110 genera, ± 3000 species: worldwide, especially temp. Many cultivated for ornamental and fruit, especially Cotoneaster , Fragaria , Malus , Prunus , Pyracantha, Rosa , and Rubus
Reference: [Robertson 1974 J Arnold Arbor 55:303332,344401,611662]
Family description, key to genera by Barbara Ertter and Dieter H. Wilken.
Species in genus: 1 sp
Etymology: (Greek: sheath female, from hypanthium enclosing pistil)
Shrub 320 dm, much-branched, ± strigose, thorny
Leaves in opposite clusters, 515 mm, linear-oblanceolate, ± thick, entire; stipules persistent
Inflorescence: flowers solitary at stem tips; bract (closely subtending flower) ± linear, base 2-lobed
Flower generally yellow (sepals often reddish outside); hypanthium bell-shaped, leathery, sheath at top enclosing pistil, 45 mm; sepals 4, 78 mm, erect, elliptic, persistent, inner 2 widely scarious-margined; petals 0; stamens 3040; pistil 1, ovary superior, style lateral, long-hairy especially below, persistent
Fruit: achene, ± 34 mm, ± crescent-shaped, brown, glabrous
Ecology: Dry, open slopes, creosote-bush scrub, pinyon/juniper woodland
Elevation: 6001600 m.
Bioregional distribution: East of Sierra Nevada, Desert (especially Desert Mountains)
Distribution outside California: to Colorado, New Mexico
Flowering time: AprJun
|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).|