Cistanthe tweedyi(synonym of Lewisiopsis tweedyi) |
Cistanthe rosea |
|
---|---|---|
Tweedy's bitterroot, Tweedy's lewisia, Tweedy's pussypaws |
rosy pussypaws |
|
Habit | Plants perennial, taprooted; caudex short-branching. | Plants annual, taprooted or roots fibrous. |
Stems | 1 or more from each rosette, 10–20 cm, bracts scattered proximally, ovate-lanceolate, scarious. |
2 or more from each rosette, spreading to ascending, 1.5–10 cm. |
Leaves | basal, in loose rosettes; blade elliptic-lanceolate to ovate or oblanceolate, narrowing to broad petiole, 6–15 cm. |
basal and cauline; basal in single, prostrate rosette; blade spatulate, 0.5–4(–5) cm. |
Inflorescences | racemose, 1–5(–8)-flowered. |
racemose or paniculate scorpioid clusters, open. |
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. |
pedicellate; sepals orbiculate, unequal, 2–3 mm, margins scarious; petals 2, white, 1 mm or less; stamen 1, opposite proximal sepal, anther yellow; style absent; stigmas 2; pedicel 1–3 mm. |
Capsules | ovoid, 7–10 mm, dehiscence circumscissile near base; valves 3–4, splitting from base toward apex. |
ovoid, 2–3 mm; valves 2. |
Seeds | 12–35, dark brownish red, suborbicular to reniform, 2 mm, not shiny, warty, strophiolate. |
5–11, black, orbicular, 0.5 mm, shiny. |
2n | = 46, 92. |
= 44. |
Cistanthe tweedyi |
Cistanthe rosea |
|
Phenology | Flowering May–Jul. | Flowering May–Aug. |
Habitat | Well-drained granitic talus slopes and ledges, often in ponderosa pine duff | Gravelly soils |
Elevation | 600-2200 m (2000-7200 ft) | 1500-3800 m (4900-12500 ft) |
Distribution |
WA; BC
|
CA; ID; NV; OR; UT; WY
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 4, p. 464. | FNA vol. 4, p. 464. |
Parent taxa | Portulacaceae > Cistanthe | Portulacaceae > Cistanthe |
Sibling taxa | ||
Synonyms | Calandrinia tweedyi, Lewisia tweedyi, Lewisiopsis tweedyi | Calyptridium roseum |
Name authority | (A. Gray) Hershkovitz: Phytologia 68: 268. (1990) | (S. Watson) Hershkovitz: Phytologia 68: 268. (1990) |
Web links |