Micranthes odontoloma |
Micranthes careyana |
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brook saxifrage, stream saxifrage, streambank saxifrage |
Carey's saxifrage |
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Habit | Plants solitary or sometimes grouped, rhizomatous. | Plants often mat-forming, with extensive rhizomes. |
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, 1–7 cm; blade rounded or broadly ovate to oblong, 1–7 cm, thin, base truncate, margins coarsely serrate to dentate, sparsely ciliate, surfaces sparsely to ± densely tangled, reddish brown-hairy. |
Inflorescences | 10–30+-flowered, open, lax, flat-topped thyrses, 20–65(–85) cm, glabrous proximally, purple-tipped subsessile-glandular distally. |
40+-flowered, lax, open thyrses, 10–40(–50) cm, purple-tipped stipitate-glandular. |
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, broadly ovate; petals white, sometimes some with 2 faint, basal yellow spots (sometimes fading upon drying), narrowly ovate to elliptic, clawed, 2–4(–5) mm, 2+ times as long as sepals; filaments linear, flattened; pistils distinct almost to base; ovary superior, (to 1/3 adnate to hypanthium). |
Capsules | green to purple, ± folliclelike. |
green, ± purple tinged, folliclelike. |
2n | = 24, 48. |
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Micranthes odontoloma |
Micranthes careyana |
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Phenology | Flowering summer–early autumn. | Flowering spring–early summer. |
Habitat | Wet meadows and stream banks | Moist soil at bases of vertical or overhanging rock outcrops, seeps |
Elevation | 1500-4000 m (4900-13100 ft) | 500-1600 m (1600-5200 ft) |
Distribution |
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC
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AL; GA; KY; NC; TN; VA; WV |
Discussion | Micranthes careyana is very similar to M. caroliniana; both are in need of study. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 8, p. 56. | FNA vol. 8, p. 61. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga odontoloma | Saxifraga careyana, Saxifraga tennesseensis |
Name authority | (Piper) A. Heller: Muhlenbergia 8: 60. 1912 , | (A. Gray) Small: Fl. S.E. U.S., 501. 1903 , |
Web links |
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