|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
For up-to-date information about California vascular plants, visit the Jepson eFlora.
Annual or perennial herb, generally fleshy
Stems generally glabrous
Leaves simple, alternate or opposite, sometimes stipuled
Flower bisexual, radial; sepals generally 2(8), free or fused at base; petals 318, free or ± fused; stamens 1many, free or inserted on corolla; ovary superior or partly inferior, chamber 1, placenta free-central or basal; styles 28, generally fused at base
Fruit: capsule, circumscissile or 23-valved
Seeds 1many, generally black, generally shiny
Genera in family: ± 20 genera, ± 400 species: generally temp Am, Australia, s Africa; some cultivated (Lewisia, Portulaca, Calandrinia )
Reference: [Bogle 1969 J Arnold Arbor 50:566598]
Family description and key to genera by Dieter H. Wilken & Walter A. Kelley.
Annual or perennial herb, from stolon, rhizome, tuber, or taproot, glabrous, ± fleshy
Leaves entire; basal 0many, rosetted; cauline generally 2, generally opposite, free to fully fused into ± 2-toothed disk or cup surrounding stem
Inflorescence: raceme, terminal, 1-sided; pedicels reflexed, becoming erect in fruit
Flower: petals 5, pink or white; stamens 5, epipetalous; ovary chamber 1, placentas basal, style 1, stigmas 3
Fruit: capsule; valves 3, margins rolling inward and forcibly expelling seeds
Seeds 36, generally black, generally clearly appendaged
Species in genus: 28 species: North America, e Asia
Etymology: (John Clayton, colonial Am botanist, born 1686)
Reference: [Miller 1978 Syst Bot 3:322341; Miller & Chambers 1993 Novon 3:268273]
Some species formerly placed in Montia.
Stem 115 cm
Leaves: basal 18 cm, blade < 2 cm, elliptic to widely deltate, base truncate to wedge-shaped, tip generally obtuse, petiole linear; cauline pair fused or partly free on 1 side, < 4 cm wide, generally round or with 2 squarish corners
Inflorescence sessile, ± dense, 1-bracted at base; flowers 330
Flower: sepals 1.53 mm; petals 23.5 mm, white or pinkish
Fruit 23 mm
Seed 12 mm, elliptic, shiny, smooth
Ecology: Vernally moist dunes, coniferous forest, scrub, in sun or shade
Elevation: < 2500 m.
Bioregional distribution: Northwestern California, High Cascade Range, High Sierra Nevada, Tehachapi Mountain Area, w Central Western California, Great Basin Floristic Province
Distribution outside California: to British Columbia, South Dakota, Colorado
Intergrades with C. parviflora , C. perfoliata.
Leaves: basal elliptic, base wedge-shaped; cauline fused
Ecology: Open, often disturbed sites, scrub
Elevation: < 2500 m.
Bioregional distribution: North Coast, Klamath Ranges, n Central Coast, San Francisco Bay Area
Distribution outside California: to British Columbia, South Dakota
Synonyms: Montia perfoliata var. d. (A. Gray) Jeps
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