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)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 to vine, often thicket-forming, generally prickly
Leaves generally odd-pinnately compound; stipules generally attached to petiole, generally gland-margined
Inflorescence: generally ± cyme or flowers solitary
Flower: hypanthium urn-shaped; bractlets 0; sepals 5, often with long expanded tip; petals generally 5 (except cultivars), generally pink in CA (white to red or yellow); stamens generally > 20; pistils generally many, ovaries superior, jointed to generally hairy styles
Fruit: bony achenes enclosed in fleshy, generally reddish hypanthium (hip)
Species in genus: 100+ species: generally n temp
Etymology: (Latin: ancient name)
Spp. hybridize freely; other non-natives established locally.
Native |
Shrub to thicket, generally 525 dm
Stem generally ± black; prickles few, generally ± thick-based, straight
Leaf: leaflets (sub)glabrous; terminal leaflet ± 1540 mm, ± obovate-elliptic, tip ± obtuse, margins single-toothed, generally glandless
Inflorescence generally 210-flowered; pedicels ± 1020 mm, generally glabrous, glandless
Flower: hypanthium generally 36 mm wide at flower, glabrous, neck 23 mm wide; sepals generally glandular, margins entire, tip generally > body, entire; petals ± 1520 mm; pistils generally > 10
Fruit ± 10 mm wide
Chromosomes: n=7
Ecology: Generally ± moist or shady areas
Elevation: 302100 m.
Bioregional distribution: Northwestern California, Cascade Range
Distribution outside California: to British Columbia
Intergrades with R. californica , R. woodsii , R. nutkana
Horticultural information: IRR, DRN: 4, 5, 6 &partSHD: 1, 7, 14, 15, 16, 17; DFCLT.