|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.
Perennial, generally from short, thick, ± branched taproot, topped by short, sometimes very thick caudex at or below ground level, sometimes from spheric corm
Stem: aerial parts restricted to inflorescence
Leaves generally in basal rosette, simple, entire or not; base wide; margin generally ± translucent
Inflorescence ± scapose; stems 1many, generally leafless but bracted, sometimes disjointing in age, 1many-flowered
Flower: sepals 28, free, persistent; petals 418, variously colored, overlapping in bud; stamens 5many; styles 28, fused at base, stigmas 28, thread-like
Fruit: capsule, translucent, spheric or ovoid, circumscissile near base
Seeds 2many, dark, generally shiny, smooth or finely tuberculate
Species in genus: ± 20 species: w North America
Etymology: (Captain Meriwether Lewis, 17741809, of Lewis & Clark Expedition)
Reference: [Elliott 1966 Bull Alpine Gard Soc 34]
Horticultural information: DRN, IRR: pots and rock gardens only; DRY when dormant; DFCLT.
Root + caudex small, generally ± fusiformSee the CNPS Inventory for information about endangerment and rarity.
Leaves fewmany, in loose rosette, sometimes few, reduced on lower part of stem, 511 cm, narrowly linear-oblanceolate, entire, tapered to slender base; tip blunt
Inflorescence: stems 13, 620 cm, each with a 25-flowered, ± umbel-like cluster; flowers rarely included in leaves; bracts among flowers and below, lanceolate, ± toothed, not glandular; pedicels > flowers
Flower: sepals 2, ± 1/3 X corolla, round or truncate, jagged-dentate, not glandular; petals 811, 1217 mm, ovate, white or pink, tips blunt or ± jagged; stamens ± 1221; stigmas 35
Ecology: Moist places in open pine forest
Elevation: 3001200 m.
Bioregional distribution: Klamath Ranges (n Del Norte Co.)
Distribution outside California: sw Oregon
CA plants low, perhaps hybrid with L. nevadensis. Threatened by logging, mining.
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