TREATMENT FROM THE JEPSON MANUAL (1993) |
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©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
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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 small tree
Stem: bark gray- to red-brown; twigs generally short
Leaves alternate or clustered, simple, deciduous; stipules deciduous
Inflorescence: racemes or clusters; flowers 316+
Flower: hypanthium bell- to urn-shaped; sepals persistent; petals ascending to erect, white; stamens ± 1020; ovary inferior, 25-chambered, styles 25
Fruit: pome, berry-like, generally spheric, blue-black
Species in genus: ± 10 species: temp North America, Eurasia, n Africa. Fr of some species used by native Americans for food
Etymology: (Latin: from old French common name)
Reference: [Jones 1946 Illinois Biol Mongr 20(2):1126]
Variation in w North America needs further study.
Native |
Shrub 14 m
Stem: twigs glabrous to white-tomentose
Leaf: blade 1345 mm, 1045 mm wide, entire to serrate from below middle, dull green below, darker above, glabrous to minutely tomentose; lateral veins 1224
Inflorescence 14 cm; flowers 38
Flower: petals 511 mm, 14 mm wide, elliptic to wedge-shaped; ovary top glabrous to tomentose, styles 24(5)
Fruit 410 mm diam
Ecology: Open, rocky slopes, scrub, pinyon/juniper woodland, coniferous forest
Elevation: 2003400 m.
Bioregional distribution: Northwestern California, Cascade Range, Sierra Nevada, Central Western California, Southwestern California, East of Sierra Nevada, Desert Mountains
Distribution outside California: to Oregon, Montana, Texas, Baja California
Flowering time: AprMay
Variable; plants from n DMtns generally < 2 m, with twigs and leaves glabrous, have been called var. covillei (Standl.) N.H. Holmgren; plants with petals > 9 mm, leaf blades with < 18 lateral veins, have been called A. pallida Greene
Horticultural information: DRN: 2, 4, 5, 6, 15, 16, 17 &IRR: 1, 3, 7, 8, 9, 10, 14, 18, 19, 20, 21.