Lewisia cotyledon |
Lewisia brachycalyx |
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cliff lewisia, cliff maids, Siskiyou lewisia |
short-sepal bitter-root, short-sepal lewisia |
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Taproots | gradually ramified distally. |
gradually ramified distally. |
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Stems | ascending to suberect, 10–12(–30) cm. |
semiprostrate to suberect, 3–8 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 at or immediately following anthesis, ± sessile or tapered to broad petiole, blade oblanceolate, ± flattened, 3–8 cm, margins entire, apex acute to 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. |
flowers borne singly on peduncles; bracts 2, ovate to broadly lanceolate, 5–7 mm, margins entire, apex acute to acuminate. |
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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. |
sessile, not disarticulate in fruit; sepals 2, decussate with bracts, ovate, 4–9 mm, herbaceous, margins entire, not glandular, apex acute; petals 5–9, white, sometimes with pink veins, or pinkish, obovate, 12–26 mm; stamens 9–15; stigmas 5–8. |
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Capsules | 3–5 mm. |
6–9 mm. |
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Seeds | 4–15, 1.5 mm, shiny, smooth. |
40–50, 1.5 mm, shiny. |
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2n | = 20. |
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Lewisia cotyledon |
Lewisia brachycalyx |
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Phenology | Flowering late spring–early summer. | |||||||||
Habitat | Montane meadows in sandy soil | |||||||||
Elevation | 1300-2400 m [4300-7900 ft] | |||||||||
Distribution |
CA; OR
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AZ; CA; UT; Mexico (Baja California)
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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.) |
As B. Mathew (1989b) noted, plants attributed to New Mexico probably were collected in Arizona. (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. 478. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Calandrinia cotyledon, Oreobroma cotyledon | L. brachycarpa, Oreobroma brachycalyx | ||||||||
Name authority | (S. Watson) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 268. (1897) | Engelmann ex A. Gray: Proc. Amer. Acad. Arts 7: 400. (1868) | ||||||||
Web links |