Lewisia cotyledon |
Lewisia stebbinsii |
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cliff lewisia, cliff maids, Siskiyou lewisia |
Stebbins' lewisia |
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Taproots | gradually ramified distally. |
gradually ramified distally. |
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Stems | ascending to suberect, 10–12(–30) cm. |
procumbent, 1.5–14 cm. |
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Leaves | basal leaves evergreen, sessile or abruptly or gradually narrowed to broad petiole, blade oblanceolate, obovate, spatulate, or rarely ± linear or ± orbiculate, ± flattened, 3–14 cm, margins entire, crisped, or toothed, apex truncate, emarginate, retuse, or rounded; cauline leaves alternate, intergrading with bracts, blade oblong to ovate, 5–10 mm, margins glandular-toothed, apex acute to occasionally obtuse. |
basal leaves withering after anthesis, gradually tapered to broad petiole, blade oblanceolate, spatulate, or obovate, flattened, 2.5–8.5 cm, margins entire, apex obtuse; cauline leaves absent. |
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Inflorescences | dense, paniculate to subumbellate cymes, 10–50-flowered; bracts alternate or opposite proximally, 2 at each flowering node distally, obovate to lanceolate, 2–4 mm, margins glandular-toothed, apex acute. |
subumbellate cymes, 1–3-branched, 3–11-flowered; bracts several, usually an opposite pair proximally, plus 2 at each flowering node distally, ovate to elliptical, 1.8–3 mm, margins glandular-toothed, apex acute. |
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Flowers | pedicellate, not disarticulate in fruit; sepals 2, suborbiculate to broadly ovate, 4–6 mm, herbaceous at anthesis, margins glandular-toothed, apex obtuse to truncate; petals 7–10, usually pink-purple with pale and darker stripes, less often white, cream with pink-orange stripes, ± orange, or yellow, oblanceolate, obovate, or spatulate, (8–)12–20 mm; stamens 5–12; stigmas 2–4; pedicel 2–5 mm. |
pedicellate, not disarticulate in fruit; sepals 2, broadly ovate, 3.5–7 mm, herbaceous at anthesis, margins glandular-toothed, apex rounded to truncate; petals 7–10, magenta or carmine with whitish bases, veins darker, oblanceolate or obovate, 8–10 mm; stamens 10–13; stigmas 3–4; pedicel 8–25 mm. |
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Capsules | 3–5 mm. |
5–7 mm. |
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Seeds | 4–15, 1.5 mm, shiny, smooth. |
20, 1.5–2 mm, shiny, smooth. |
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Lewisia cotyledon |
Lewisia stebbinsii |
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Phenology | Flowering late spring–early summer. | |||||||||
Habitat | Open meadows in dryish, rocky or gravelly soils | |||||||||
Elevation | 1900 m (6200 ft) | |||||||||
Distribution |
CA; OR
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CA |
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Discussion | Varieties 3 (3 in the flora). The varieties occasionally co-occur. Natural hybrids with Lewisia leeana are known (see discussion under 8. L. leeana). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Lewisia stebbinsii is known only from the north Coast Ranges in Mendocino County (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 4, p. 480. | FNA vol. 4, p. 484. | ||||||||
Parent taxa | Portulacaceae > Lewisia | Portulacaceae > Lewisia | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Calandrinia cotyledon, Oreobroma cotyledon | |||||||||
Name authority | (S. Watson) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 268. (1897) | Gankin & W. R. Hildreth: Four Seasons 2(4): 13, figs. a–c. (1968) | ||||||||
Web links |