Jepson Flora Project: Jepson Interchange    

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

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

ROSACEAE

ROSE FAMILY

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.

NEVIUSIA

SNOW-WREATH

Barbara Ertter

Shrub, ± strigose
Leaves alternate, deciduous; blade shallowly lobed, toothed; stipules linear
Inflorescence umbel-like
Flower: hypanthium flat, bractlets 0; sepals 5–6, ± toothed; petals 0 or 5–6; stamens 50–100+, filaments showy, white, ± expanded; pistils 2–6, ovary superior, strigose, chamber 1, ovule 1
Fruit: achene, wall ± soft
Species in genus: 2 species: CA, se US
Etymology: (Reverend R.D. Nevius, 1827–1913)

Native

N. cliftonii Shevock, Ertter & D.W. Taylor

Plant 5–25 dm, erect
Stem: branches slender
Leaf: petiole generally 4–10 mm; blade 20–60 mm, ovate to cordate, lobes sharply toothed, sparsely strigose
Inflorescence: flowers generally 3–5; pedicels 1–3 cm
Flower: sepals 4–6 mm, ± obovate; petals 4–6 mm, clawed, white; stamens ± 50, filaments 4–5 mm
Fruit 3–4 mm
Ecology: Uncommon. Shaded, n-facing, limestone slopes
Elevation: 300–500 m.
Bioregional distribution: Cascade Range (near Lake Shasta).
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for NEVIUSIA%20cliftonii being generated
 


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