Lewisia leeana |
Lewisia triphylla |
|
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many flower lewisia, quill-leaf lewisia |
three leaf bitterroot, three-leaf lewisia |
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Taproots | gradually ramified distally. |
cormlike, globose. |
Stems | spreading or suberect, 8–20 cm. |
lax to erect, 3–11 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 before anthesis, ± sessile, blade narrowly linear to filiform, subcylindric, 1–6 cm, margins entire, apex obtuse to subacute; cauline leaves 2–3(–5), paired or whorled, blade similar to basal leaves, 10–50 mm. |
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. |
usually subumbellate to paniculate cymes, (1–)3–25-flowered; bracts 2 per flower, ovate to lanceolate, 1–5 mm, margins entire, apex obtuse to subacute. |
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. |
pedicellate, not disarticulate in fruit; sepals 2, ovate, 2–4 mm, herbaceous, margins entire, apex rounded to obtuse; petals 5–9, white or pinkish with darker veins, elliptic-obovate to elliptic-ovate, 4–7 mm; stamens (3–)4(–5); stigmas 3–5; pedicel 5–15(–25) mm. |
Capsules | 4–5 mm. |
3–4 mm. |
Seeds | 1–2, 2–2.5 mm, shiny, smooth. |
8–25, 1 mm, shiny, shallowly tuberculate. |
2n | = 14. |
|
Lewisia leeana |
Lewisia triphylla |
|
Phenology | Flowering summer. | Flowering late spring–summer. |
Habitat | Open north- or northwest-facing granitic or serpentine slopes or cliffs | Open places, sandy to gravelly soils, sometimes alpine meadows, usually near melting snow |
Elevation | 1300-3400 m (4300-11200 ft) | 1500-3300 m (4900-10800 ft) |
Distribution |
CA; OR
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CA; CO; ID; MT; NV; OR; UT; WA; WY; BC
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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.) |
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Source | FNA vol. 4, p. 481. | FNA vol. 4, p. 484. |
Parent taxa | Portulacaceae > Lewisia | Portulacaceae > Lewisia |
Sibling taxa | ||
Synonyms | Calandrinia leeana, L. eastwoodiana, Oreobroma leeanum | Claytonia triphylla, Erocallis triphylla, Oreobroma triphyllum |
Name authority | (Porter) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 269. (1897) | (S. Watson) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 269. (1897) |
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