Micranthes marshallii |
Micranthes palmeri |
|
---|---|---|
Idaho saxifrage, Marshall's saxifrage |
Palmer's saxifrage |
|
Habit | Plants in groups or sometimes mat-forming, rhizomatous. | Plants solitary or in clumps, with bulbils on caudices. |
Leaves | basal; petiole flattened, 3–15 cm; blade ovate, 1–5 cm, ± fleshy, base attenuate, margins shallowly crenate-serrate (teeth ca. 2 mm), eciliate, surfaces sparsely tangled, reddish brown-hairy abaxially, glabrate adaxially. |
basal; petiole flattened, 1–9 cm; blade ovate to elliptic, 2–8 cm, slightly fleshy, base attenuate, margins entire or subentire, ciliate, surfaces tangled, reddish brown-hairy. |
Inflorescences | 15–50+-flowered, open, lax thyrses, 20–40 cm, purple-tipped stipitate-glandular. |
30+-flowered, (flowers sometimes almost secund), very open, lax thyrses, 6–50 cm, hairy proximally, densely so distally. |
Flowers | sepals reflexed, lanceolate to oblong; petals white, with 2 basal yellow spots (often faded when dried), ovate, clawed, 1.5–4.5 mm, longer than sepals; filaments strongly club-shaped, sometimes petaloid (short-clawed, equaling petals); pistils distinct almost to base; ovary superior, (to 1/3 adnate to hypanthium). |
sepals erect to ascending, ovate to triangular; petals white, not spotted, broadly oblong to elliptic, not clawed, 3–6 mm, 2+ times as long as sepals; filaments linear, flattened; pistils distinct almost to base; ovary ± superior, (to 1/3 adnate to hypanthium). |
Capsules | greenish to reddish purple, folliclelike. |
green with reddish or purplish tinge, or reddish purple, folliclelike. |
2n | = 20. |
|
Micranthes marshallii |
Micranthes palmeri |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Deeply shaded watercourses, stream banks, seeps | Rocky, open woodlands |
Elevation | 100-1000 m (300-3300 ft) | 100-1000 m (300-3300 ft) |
Distribution |
CA; OR
|
AR; OK |
Source | FNA vol. 8, p. 63. | FNA vol. 8, p. 61. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Saxifraga marshallii | Saxifraga palmeri, Saxifraga virginiensis var. subintegra |
Name authority | (Greene) Small: in N. L. Britton et al., N. Amer. Fl. 22: 145. 1905 , | Bush: Amer. Midl. Naturalist 11: 221. 1928 , |
Web links |