Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



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)5–many, pistils (0)1–many, simple or compound; ovary superior to inferior, styles 1–5
Fruit: achene, follicle, drupe, pome, or blackberry- to raspberry-like
Seeds generally 1–5
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 55:303–332,344–401,611–662]
Family description, key to genera by Barbara Ertter and Dieter H. Wilken.



Thomas J. Rosatti

Shrub, ± evergreen; thorns often leafy or branched
Leaf: stipules soon deciduous; petiole short
Inflorescence: racemes or panicles at ends of short lateral branches
Flower bisexual; bractlets on hypanthium 0; sepals persistent; petals whitish; stamens 20, fused at base; ovary half-inferior, chambers 5
Fruit: pome, ± spheric, open at top; stones 5, free, 1–2-seeded
Species in genus: ± 6 species: Medit, Asia
Etymology: (Greek: fire thorn, from fruit color, thorns)


P. angustifolia (Franchet) C.K. Schneid.

Plant < 4 m, prostrate to generally erect, ± gray-tomentose (sometimes becoming glabrous)
Leaf 25–50 mm, generally ± oblanceolate, generally rolled under; teeth 0–few, generally distal, inconspicuous
Inflorescence ± several-flowered
Fruit 6–8 mm, yellow-orange to red
Ecology: Disturbed areas, abandoned fields, roadsides
Elevation: < 200 m.
Bioregional distribution: s Outer North Coast Ranges, Central Coast, San Francisco Bay Area, South Coast, expected elsewhere
Distribution outside California: native to China

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bioregional map for PYRACANTHA%20angustifolia being generated

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