| 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. |
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)5–many, pistils (0)1–many, simple or compound; ovary superior to inferior, styles 1–5
Fruit: achene, follicle, drupe, pome, or blackberry- to raspberry-like
Seeds generally 1–5
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 55:303–332,344–401,611–662]
Family description, key to genera by Barbara Ertter and Dieter H. Wilken.
Shrub or small tree
Leaves ± clustered on short lateral branches, mostly deciduous, generally deeply lobed, ± strongly rolled under, generally with ± sunken glands above; bases persistent, overlapping, sheathing stem
Inflorescence: flowers solitary on side-branch tips
Flower: hypanthium ± funnel-shaped, sometimes partly glandular, bractlets 0; stamens ± 25; pistils 1–5(12), simple, styles persistent, ± hairy
Fruit: achene, ± fusiform to oblong
Species in genus: ± 5 species: w North America
Etymology: (Frederick T. Pursh, North America flora author, 1774–1820)
Reference: [Koehler & Smith 1981 Madroño 28:13–25; Henrickson 1986 Phytologia 60:468]