|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
previous taxon |
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
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 130 cm, spreading to erect
Leaves: basal 118 cm, linear to narrowly oblanceolate, blade 17 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 340
Flower: sepals 1.54 mm; petals 26 mm, white or pinkish
Fruit 1.54 mm
Seeds 1.22.3 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
Leaves: cauline pair fused, disk-like
Inflorescence stalked, open
Flower: sepals 1.52.5 mm; petals 46 mm; stamens maturing well before stigmas
Seed 1.21.5 mm
Ecology: Habitats of sp.
Elevation: 1501200 m.
Bioregional distribution: Sierra Nevada Foothills, Tehachapi Mountain Area.Cross-pollinating.