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||
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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: (derivation unknown)
Reference: [Landon 1975 Taxon 24:200]
Shrub or small tree, 15 m, ± dioecious
Leaves deciduous, 513 cm, elliptic to narrowly obovate, generally entire, ± rolled under, paler below, glabrous above; stipules soon deciduous; petiole 515 mm
Inflorescence: racemes on short lateral branches, 310 cm, pendent, bracted; bractlets 12 at pedicel tip
Flowers fragrant (generally some bisexual); hypanthium ± 5 mm; petals clawed, white
Staminate flower: hypanthium persistent; petals spreading, > pistillate petals; stamens 15, prominent
Pistillate flower: most of hypanthium deciduous; petals erect; ovaries generally 5, prominent, free, superior, styles deciduous
Fruit: drupes 15 per pistillate flower, 515 mm, bean-shaped, blue-glaucous
Ecology: Shaded coniferous forest, chaparral
Elevation: < 1700 m.
Bioregional distribution: Northwestern California, w Cascade Range, w Sierra Nevada, Sacramento Valley (Sutter Buttes), south-central San Joaquin Valley, w Central Western California, sw Western Transverse Ranges
Distribution outside California: to British Columbia
Synonyms: Osmaronia c. (Hook. & Arn.) Greene
Horticultural information: partSHD: 4, 5, 6, 15, 16, 17 &IRR: 7, 8, 9, 14, 18, 19, 20, 21, 22, 23, 24.
|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).|