|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
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
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.
Shrub or tree
Stem: bark gray to red-brown
Leaves generally alternate, simple, generally glabrous; stipules deciduous
Inflorescence: raceme or umbel-like cluster, often on short branchlets
Flower: hypanthium cup- to urn-shaped; sepals spreading to reflexed; stamens 15+, generally in 2+ whorls; pistil 1, ovary superior, chamber 1, ovules 2, style 1, stigma subspheric
Fruit: drupe, generally ovoid to spheric
Species in genus: ± 400 species: temp North America, Eurasia, n Africa; many cultivated for wood, ornamental, edible fruit; some persisting near human habitation (P. armeniaca , apricot; P. avium , sweet cherry; P. cerasus , sour cherry; P. domestica , plum; P. laurocerasus , laurel cherry; P. lusitanica , portugal laurel; P. mahaleb ; P. persica , peach).
Seeds of many species ± TOXIC from production of hydrocyanic acid.
Shrub < 2 m
Stem much-branched; twigs rigid, becoming spine-like
Leaves generally clustered, deciduous; petiole 07 mm; blade 930 mm, elliptic to oblanceolate, finely serrate, base tapered, tip generally acute
Inflorescence: flowers 12; pedicel 47 mm
Flower: sepals puberulent inside; petals 59 mm, reddish
Fruit 1014 mm, subspheric, densely puberulent, red-orange; pulp dry
Ecology: Rocky slopes, flats, scrub, coniferous forest
Elevation: 9002600 m.
Bioregional distribution: High Sierra Nevada (e slope), Great Basin Floristic Province, n Desert Mountains (Last Chance Range)
Distribution outside California: w Nevada
Flowering time: MarApr
Horticultural information: DRN, SUN: 1, 2, 3, 7, 8, 9, 10, 18, 19, 20, 21, 22, 23 &DRY: 14, 15, 16, 17.