|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.
Perennial, generally ± glandular, generally resinous-smelling; caudex generally branched
Stem generally ascending to erect
Leaves generally basal, odd-1-pinnate, generally ± flat; cauline alternate, reduced upward; uppermost lateral leaflets generally ± fused with terminal
Inflorescence: cyme, open or of dense clusters; pedicels generally straight
Flower: hypanthium a ± flat-bottomed cup, width ± 2 X length; bractlets 5, generally 2/3 sepals; sepals 5, often reflexed; petals 5, generally ± = sepals, blunt, white; stamens 10, filaments flat, often forming a tube; pistils 2many, ovaries superior, styles jointed below fruit tip, ± thicker at base
Species in genus: 19 species: w North America
Etymology: (J. Horkel, German plant physiologist, 17691846)
Data apply to basal leaves, pressed hypanthia.
Plant matted, grayish; odor very strongSee the CNPS Inventory for information about endangerment and rarity.
Stem decumbent to ascending, generally 1030 cm
Leaf generally 410 cm; leaflets generally 510 per side, ± crowded, 712 mm, generally ± wedge-shaped, ± 510-toothed ± 1/31/2 to base, hairs dense
Inflorescence ± dense; clusters indistinct, 510-flowered; pedicels generally 16 mm
Flower: hypanthium width 45 mm, > 2 X length, inner wall hairy; bractlets ± 1 mm wide, lanceolate; sepals 36 mm; petals generally 46 mm, oblong to oblanceolate; filaments 12.8 mm, bases ± 0.5 mm wide, anthers ± 0.7 mm; pistils generally 2030, styles 24 mm
Fruit 1.52 mm
Ecology: Sandy coastal flats
Elevation: ± 15350 m.
Bioregional distribution: c North Coast (Fort Bragg), n Central Coast (Point Reyes to Santa Cruz)
Horticultural information: In cultivation.