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 or perennial herb, generally fleshy
Stems generally glabrous
Leaves simple, alternate or opposite, sometimes stipuled
Inflorescence various
Flower bisexual, radial; sepals generally 2(–8), free or fused at base; petals 3–18, free or ± fused; stamens 1–many, free or inserted on corolla; ovary superior or partly inferior, chamber 1, placenta free-central or basal; styles 2–8, generally fused at base
Fruit: capsule, circumscissile or 2–3-valved
Seeds 1–many, 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 50:566–598]
Family description and key to genera by Dieter H. Wilken & Walter A. Kelley.


Kenton L. Chambers

Annual or perennial herb, from stolon, rhizome, tuber, or taproot, glabrous, ± fleshy
Leaves entire; basal 0–many, 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 3–6, 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 3:322–341; Miller & Chambers 1993 Novon 3:268–273]
Some species formerly placed in Montia.


C. parviflora Hook.

Stem 1–30 cm, spreading to erect
Leaves: basal 1–18 cm, linear to narrowly oblanceolate, blade 1–7 cm, > 3 X longer than wide, gradually tapered to petiole, obtuse to acute; cauline free (< 6 cm, linear) or disk-like (< 5 cm diam, round or squarish)
Inflorescence stalked or sessile, dense or open, 1-bracted at base; flowers 3–40
Flower: sepals 1.5–4 mm; petals 2–6 mm, white or pinkish
Fruit 1.5–4 mm
Seeds 1.2–2.3 mm, ovate to round, shiny, smooth
Ecology: Vernally moist, often disturbed places in sun or shade
Elevation: < 2300 m.
Bioregional distribution: California Floristic Province, East of Sierra Nevada, Mojave Desert
Distribution outside California: to British Columbia, Montana, n Mexico


subsp. grandiflora John M. Mill. & K.L. Chambers

Leaves: cauline pair fused, disk-like
Inflorescence stalked, open
Flower: sepals 1.5–2.5 mm; petals 4–6 mm; stamens maturing well before stigmas
Seed 1.2–1.5 mm
Chromosomes: 2n=12
Ecology: Habitats of sp.
Elevation: 150–1200 m.
Bioregional distribution: Sierra Nevada Foothills, Tehachapi Mountain Area.Cross-pollinating.

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bioregional map for CLAYTONIA%20parviflora%20subsp.%20grandiflora being generated

Retrieve Jepson Interchange Index to Plant Names entry for Claytonia parviflora subsp. grandiflora
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