|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 branched caudex; glands 0 or hiddenSee the CNPS Inventory for information about endangerment and rarity.
Stem prostrate to decumbent, 315 cm, ± ascending-hairy
Leaves palmate; basal generally 1.55 cm, leaflets generally 5, central leaflet 520 mm, narrowly obovate, distal 1/2 few-toothed ± 1/2 to midvein, densely white-tomentose below, ± green and strigose above
Inflorescence generally 15-flowered; pedicels often ± recurved in fruit
Flower: hypanthium 2.55 mm wide; petals 2.55.5 mm; filaments 12.5 mm, anthers 0.60.9 mm; styles 1.52.5 mm, slender
Fruit 1.52 mm, smooth, light brown
Ecology: Rocky meadows, ridges
Elevation: ± 3170 m.
Bioregional distribution: n White and Inyo Mountains (White Mtns)
Distribution outside California: w N.America
Synonyms: var. divisa Rydb.; P. beanii Clokey
Plants intermediate to P. gracilis var. pulcherrima (Lehm.) Fernald (otherwise unknown from CA) also in n W&I.