|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 generally ± tufted from loosely branched caudex; glandular hairs often many
Stem ± erect, 590 cm, spreading-hairy
Leaves pinnate; basal 330 cm, terminal leaflet largest (0.512 cm), lateral generally 35 per side, ± obovate, toothed 1/41/2 to midvein, ± hairy
Inflorescence generally 230-flowered
Flower: hypanthium 36 mm wide; petals 310 mm, generally widely ovate, yellow to white; stamens ± 25, filaments 13.5 mm (longest opposite sepals), anthers 0.61.2 mm; styles ± 12.5 mm, attached below middle of fruit, ± fusiform and rough
Fruit ± 1 mm, smooth or ± ridged, golden to reddish brown
Ecology: Common. Many habitats
Elevation: < 3800 m.
Bioregional distribution: California Floristic Province (except Great Central Valley), Great Basin Floristic Province
Distribution outside California: w N.America
Often confused with Horkelia ; despite much work, subspp. remain poorly defined.
See the CNPS Inventory for information about endangerment and rarity.
Stem generally 520 cm, sparsely ± glandular-hairy
Leaves: basal generally 310 cm, sheathing base generally strigose, terminal leaflet generally 515 mm; lateral leaflet teeth < 10, generally single
Inflorescence: branch angle generally ± 50°
Flower not fully opening; bractlets < 0.5 mm wide; petals 34 mm, ± = sepals, yellow; styles 1.52.5 mm
Ecology: Edges of seeps, small waterways
Elevation: 19002400 m.
Bioregional distribution: San Gabriel Mountains (Mount Islip area)
Synonyms: P. peirsonii Munz misapplied