Micranthes odontoloma |
Micranthes rufidula |
|
---|---|---|
brook saxifrage, stream saxifrage, streambank saxifrage |
rusty-hair saxifrage |
|
Habit | Plants solitary or sometimes grouped, rhizomatous. | Plants solitary or in groups, with bulbils on caudices, or rhizomatous. |
Leaves | basal; petiole rounded, 2–30 cm; blade round, 7–40 cm, thin to slightly fleshy, base cordate to truncate, margins regularly dentate, eciliate, surfaces sparsely brownish hairy abaxially, glabrous adaxially. |
basal; petiole flattened, 4–8 cm; blade ovate to elliptic, 1–4 cm, fleshy, base attenuate to ± truncate, margins serrate (15–30- toothed), eciliate, surfaces densely tangled, reddish brown-hairy abaxially, glabrous adaxially. |
Inflorescences | 10–30+-flowered, open, lax, flat-topped thyrses, 20–65(–85) cm, glabrous proximally, purple-tipped subsessile-glandular distally. |
15+-flowered, open, flat-topped thyrses, 5–20 cm, purple-tipped stipitate-glandular; (bracts often tangled brown-hairy). |
Flowers | sepals reflexed, ovate to elliptic; petals white, each with 2 basal yellow spots, round to broadly elliptic, clawed, 3–4.5 mm, longer than sepals; filaments strongly club-shaped, (to 6 mm); pistils connate ca. 1/2 their lengths; ovary superior. |
sepals spreading, ovate, (often tangled brown-hairy); petals white, not spotted, ovate to elliptic, clawed, 2–4 mm, longer than sepals; filaments linear, flattened to slightly club-shaped; pistils distinct almost to base; ovary superior, (to 1/3 adnate to hypanthium). |
Capsules | green to purple, ± folliclelike. |
greenish to reddish purple, folliclelike. |
2n | = 24, 48. |
= 20, 38, 56, 58. |
Micranthes odontoloma |
Micranthes rufidula |
|
Phenology | Flowering summer–early autumn. | Flowering late winter–summer. |
Habitat | Wet meadows and stream banks | Wet to dry, rocky ledges |
Elevation | 1500-4000 m (4900-13100 ft) | 0-3000 m (0-9800 ft) |
Distribution |
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC
|
CA; OR; WA; BC
|
Source | FNA vol. 8, p. 56. | FNA vol. 8, p. 62. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga odontoloma | Saxifraga aequidentata, Saxifraga occidentalis subsp. rufidula, Saxifraga occidentalis var. rufidula, Saxifraga rufidula |
Name authority | (Piper) A. Heller: Muhlenbergia 8: 60. 1912 , | Small: in N. L. Britton et al., N. Amer. Fl. 22: 140. (1905) |
Web links |
|
|