Jepson Flora Project: Jepson Interchange |
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TREATMENT FROM THE JEPSON MANUAL (1993) |
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Jepson Interchange (more information) |
©Copyright 1993 by the Regents of the University of California
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AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
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 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.
Native |
Caudex short, roots much-branched, some fibrous
Leaves many, in rosette, 0.51.5 cm, linear or club-shaped, fleshy, entire, tapered to base; tip blunt
Inflorescence: stems few, < 1 cm, 1-flowered, disjointing near middle, leaving ring of 24 scarious, ovate bracts; flowers exserted from leaves
Flower: sepals 2, 0.7 X corolla, petal-like, scarious in age, ± round, entire; petals 58, 11.5 cm, obovate, pink, tip round; stamens 15; stigmas 2
Ecology: Granitic sand
Elevation: 19003500 m.
Bioregional distribution: c&s High Sierra Nevada
Synonyms: L. rediviva var. yosemitana K. Brandegee; L. yosemitana Jeps. misapplied