Cistanthe tweedyi(synonym of Lewisiopsis tweedyi) |
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Tweedy's bitterroot, Tweedy's lewisia, Tweedy's pussypaws |
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Habit | Plants perennial, taprooted; caudex short-branching. |
Stems | 1 or more from each rosette, 10–20 cm, bracts scattered proximally, ovate-lanceolate, scarious. |
Leaves | basal, in loose rosettes; blade elliptic-lanceolate to ovate or oblanceolate, narrowing to broad petiole, 6–15 cm. |
Inflorescences | racemose, 1–5(–8)-flowered. |
Flowers | pedicellate; sepals broadly ovate, 9–10 mm, scarious; petals 7–9(–12), salmon-pink to yellowish, rarely white, 25–40 mm; stamens 10–23, anther yellow; style present; stigmas 3; pedicel 20–60 mm. |
Capsules | ovoid, 7–10 mm, dehiscence circumscissile near base; valves 3–4, splitting from base toward apex. |
Seeds | 12–35, dark brownish red, suborbicular to reniform, 2 mm, not shiny, warty, strophiolate. |
2n | = 46, 92. |
Cistanthe tweedyi |
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Phenology | Flowering May–Jul. |
Habitat | Well-drained granitic talus slopes and ledges, often in ponderosa pine duff |
Elevation | 600-2200 m [2000-7200 ft] |
Distribution |
WA; BC
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Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 464. |
Parent taxa | |
Sibling taxa | |
Synonyms | Calandrinia tweedyi, Lewisia tweedyi, Lewisiopsis tweedyi |
Name authority | (A. Gray) Hershkovitz: Phytologia 68: 268. (1990) |
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