|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, generally thorny
Leaves stipuled, petioled, deciduous, toothed to lobed
Inflorescence: racemes at branch tips
Flower: hypanthium cup- to urn-shaped, bractlets 0; sepals becoming reflexed; petals generally white; stamens 525; ovary inferior, styles 15, free
Fruit: pome, drupe-like, purple-black and glabrous in CA; stones 15, generally 1-seeded
Species in genus: ± 300 species: n temp
Etymology: (Greek: flower thorn, used by Theophrastus?; or strength, from strong wood or thorns)
Reference: [Brunsfeld & Johnson 1990 Madroño 37:274282]
C. erythropoda may occur in e D; C. monogyna Jacq. escaped from or persistent beyond cultivated, perhaps naturalized. Many hybrids and morphologically identifiable clones.
Stem: older thorns 812 mm
Leaf 29 cm; blade base wedge-shaped, entire, margin above base toothed, generally unlobed, tips rounded
Flower 1213 mm wide when dry; sepals entire to ± gland-toothed; stamens (12)20; ovary generally glabrous, styles generally 5
Fruit generally few per inflorescence, 78 mm wide when fresh; stone ± 4.5 mm, outer face keeled, narrow, sides deeply pitted
Ecology: Moist streamsides, lakesides, forest
Elevation: generally < 1500 m.
Bioregional distribution: Klamath Ranges, North Coast Ranges, Cascade Range, n San Francisco Bay Area
Distribution outside California: to British Columbia, Montana
Horticultural information: 4, 5, 6 &IRR: 1, 2, 3, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24; may be INV.