|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.
Annual to shrub; odor resinous or 0
Leaves generally basal, odd-1-pinnate to 1-palmate or 1-ternate; leaflets ± toothed or lobed, terminal generally ± = lateral
Inflorescence: cyme, generally ± open; pedicels generally ± straight
Flower: hypanthium ± shallow; bractlets 5; sepals generally 5, ± triangular; petals generally 5, generally = or > sepals, generally ± widely obcordate, generally yellow; stamens generally 20; pistils generally many, styles generally jointed near tip
Species in genus: 200500 species: n temp
Etymology: (Latin: diminutive of powerful, for reputed medicinal value)
Reference: [Clausen, Keck, & Hiesey 1940 Carn Inst Wash Pub 520:26195]
P. anglica Laicharding is a waif from cultivated: stem trailing; pedicels 28 cm, slender; sepals and petals generally 4; leaflets 35.
Plant ± tufted from few-branched caudex; glands generally 0 or hidden
Stem decumbent to ± erect, generally 1060 cm, glabrous to cottony
Leaves pinnate to subpalmate; basal generally 325 cm, leaflets 29 per side, separated or overlapped, 550 mm, oblanceolate to obovate, toothed to lobed, glabrous to densely hairy
Inflorescence generally < 20-flowered
Flower: hypanthium 36 mm wide; petals 510 mm; filaments 14 mm, anthers 0.71 mm; styles 23 mm, slender
Fruit 1.52 mm, smooth, ± brown
Ecology: Meadows, rocks
Elevation: 11003700 m (highest in SN).
Bioregional distribution: Klamath Ranges, High Cascade Range, High Sierra Nevada, Warner Mountains
Distribution outside California: w N.America
May hybridize with P. diversifolia , P. gracilis , P. wheeleri ; subspp. poorly defined.
Leaves: basal pinnate; petiole generally < blade, cottony; leaflets 37 per side, ± overlapped, generally 520 mm, palmately lobed > 1/2 to base, generally white-hairy
Chromosomes: 2n= ± 72102
Ecology: Habitats of sp.
Elevation: 15002300 m (KR) or 27003700 m.
Bioregional distribution: c Klamath Ranges, High Sierra Nevada, Warner Mountains
Distribution outside California: to Washington, Nevada
Synonyms: P. b. S. Watson (var. viridis Jeps. misapplied); P. millefolia Rydb. var. algida Jeps
Horticultural information: IRR, DRN, SUN: 1, 2, 3, 6, 7, 15, 16, 17, 18.