|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 openly matted, greenSee the CNPS Inventory for information about endangerment and rarity.
Stem generally 1030 cm
Leaf 510 cm; leaflets 36 per side, separated, 515 mm, ± obovate, 510-toothed 1/4 to base, hairs sparse
Inflorescence open, ± 510-flowered; pedicels 515 mm, ± recurved in fruit
Flower: hypanthium width ± 34 mm, > 3 X length; bractlets 0.51.5 mm wide, lanceolate; sepals 46 mm; petals 47 mm, obovate to elliptic; filaments generally 13 mm, bases ± 1 mm wide, anthers 0.61 mm; pistils generally 2050, styles ± 2 mm
Fruit ± 1.5 mm
Ecology: Open chaparral
Elevation: 80900 m.
Bioregional distribution: n&c Sierra Nevada Foothills (especially Ione Formation).Reported once from limestone
Horticultural information: In cultivation.