Lewisia leeana |
Lewisia disepala |
|
---|---|---|
many flower lewisia, quill-leaf lewisia |
Yosemite lewisia |
|
Taproots | gradually ramified distally. |
gradually ramified distally. |
Stems | spreading or suberect, 8–20 cm. |
erect, 0.5–3 cm. |
Leaves | basal leaves evergreen, sessile, blade linear, ± terete, 1.5–6 cm, margins entire, apex obtuse; cauline leaves alternate, intergrading with bracts, blade narrowly lanceolate, 5 mm, margins entire, apex acute. |
basal leaves withering at or soon after anthesis, sessile, blade linear to slightly clavate, terete, 0.8–2 cm, margins entire, apex obtuse; cauline leaves absent. |
Inflorescences | paniculate cymes, 50–70(–100)-flowered; bracts several, alternate proximally, 2 at each flowering node distally, ovate to narrowly lanceolate, 2–5 mm, margins glandular-toothed, apex acute. |
with flowers borne singly; bracts 2–4, proximal in 1 pair, ovate to lanceolate, 2–3 mm, margins entire, apex acute. |
Flowers | pedicellate, not disarticulate in fruit; sepals 2, suborbiculate, 1–4 mm, herbaceous at anthesis, margins glandular-toothed, apex truncate; petals 5–8, magenta, lavender, or white with or without magenta veins, obovate, 5–7 mm; stamens 4–8; stigmas 2; pedicel 3–15 mm. |
sessile to subsessile, disarticulate in fruit; sepals 2, broadly obovate to broadly ovate, 7–8 mm, scarious at anthesis, margins entire, apex rounded or sometimes emarginate; petals 5–8, pale rose-pink, oblanceolate to broadly obovate, 13–18 mm, apex obtuse; stamens 1–15; stigmas 4. |
Capsules | 4–5 mm. |
|
Seeds | 1–2, 2–2.5 mm, shiny, smooth. |
11–15, 2.8–3.5 mm. |
2n | = 14. |
|
Lewisia leeana |
Lewisia disepala |
|
Phenology | Flowering summer. | Flowering late winter-mid(-late) spring. |
Habitat | Open north- or northwest-facing granitic or serpentine slopes or cliffs | Granitic formations on rocky, gravelly, or sandy substrate |
Elevation | 1300-3400 m (4300-11200 ft) | 1900-2600 m (6200-8500 ft) |
Distribution |
CA; OR
|
CA |
Discussion | Lewisia leeana is known only from northwestern California and southwesternmost Oregon, and a disjunct population in Fresno County, California. As discussed by B. Mathew (1989b), Lewisia ×whiteae Purdy (California) is a natural, constantly recurring hybrid between L. leeana and L. cotyledon. In their narrowly spatulate leaves, the hybrids resemble L. columbiana out of range (cf. L. T. Dempster 1993); the flowers are reportedly more deeply colored. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Lewisia disepala is known only from scattered localities in the southern Sierra Nevada. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 481. | FNA vol. 4, p. 481. |
Parent taxa | Portulacaceae > Lewisia | Portulacaceae > Lewisia |
Sibling taxa | ||
Synonyms | Calandrinia leeana, L. eastwoodiana, Oreobroma leeanum | L. rediviva var. yosemitana |
Name authority | (Porter) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 269. (1897) | Rydberg: in N. L. Britton et al., N. Amer. Fl. 21: 328. (1932) |
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