|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 generally tufted (± matted), green to grayish
Stem generally 1060 cm
Leaf generally 415 cm; leaflets 315 per side, separated to ± crowded, generally 420 mm, narrowly wedge-shaped to ± round, ± 510-toothed to lobed, hairs sparse to dense
Inflorescence: clusters 1several, generally ± head-like, generally 530-flowered; pedicels generally 13 mm
Flower: hypanthium width generally 23.5 mm, ± 12 X length; bractlets < 0.5 mm wide, linear; sepals generally 23 mm; petals 26 mm, ± wedge-shaped; filaments 0.11.5 mm, bases 0.21 mm wide, anthers generally ± 0.5 mm; pistils generally 1020, styles 0.81.5 mm
Fruit 11.8 mm
Ecology: Dry meadow edges, open forest, volcanic or granitic soils
Elevation: 10003300 m.
Bioregional distribution: e Klamath Ranges, High Cascade Range, High Sierra Nevada, Modoc Plateau, n East of Sierra Nevada
Distribution outside California: to Washington, Wyoming, Nevada
Sspp. need study
Leaf 1015 cm; leaflets 47 per side, separated, generally 1020 mm, generally ± obovate, ± 10-toothed < 1/4 to base, hairs generally sparse
Inflorescence: clusters generally 1030-flowered
Flower: petals 46 mm; filaments 0.51.5 mm, generally longer than wide, anthers ± 0.6 mm; styles 11.5 mm
Fruit ± 1.8 mm
Ecology: Habitats of sp.
Elevation: 18002300 m.
Bioregional distribution: Warner Mountains
Distribution outside California: to Washington, Idaho
Horticultural information: TRY; DFCLT.