TREATMENT FROM THE JEPSON MANUAL (1993) |
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©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
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, nonglandular
Leaves generally ± basal, odd-1-pinnate; leaflets ± evenly toothed to lobed
Inflorescence: dense spike or head
Flower: hypanthium ± conic; bractlets 0; sepals generally 4; petals 0; stamens 2 or 4, opposite sepals; pistils 1(2), ovaries superior, continuous to style at top, stigma many-branched, exserted from hypanthium
Fruit: hypanthium ± hardened, encasing elliptic achenes; prickles generally 4many, barbed
Species in genus: 50150 species: especially s hemisphere
Etymology: (Greek: thorn, from fruit)
Reference: [Yeo 1973 Bot Soc British Isles Conf Rep 13:193221]
Introduced |
Stem: flower-stem 1020 cm
Leaf 26 cm in CA; stipules leaflet-like; leaflets 35 per side, 515 mm, elliptic-oblanceolate, evenly toothed < 1/4 to midvein
Inflorescence: head ± 10 mm diam (3035 mm in fruit), spheric
Flower: sepals ± 1.5 mm, elliptic-ovate; stamens 2, pale
Fruit: hypanthium body 2.54 mm, obconic; prickles 4, on fruit top, 1015 mm
Ecology: Generally ± disturbed areas
Elevation: < 200 m.
Bioregional distribution: North Coast, Central Coast, n South Coast
Distribution outside California: native to New Zealand
Cult. Weedy
Synonyms: A. anserinifolia (J.R. Forst. & G. Forst.) Druce misapplied
At least 2 other species cultivated, perhaps naturalized in CCo: A. pallida (Kirk) H.H. Allan (leaflets 13 cm, hypanthium body in fruit 56 mm, prickles 815 mm); Australian sp. undescribed (leaflets 13 cm, hypanthium body in fruit 46 mm, prickles 610 mm).