Micranthes odontoloma |
Micranthes foliolosa |
|
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brook saxifrage, stream saxifrage, streambank saxifrage |
leafy stem saxifrage, naked-bulbil small-flower-saxifrage, saxifrage à bulbilles |
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Habit | Plants solitary or sometimes grouped, rhizomatous. | Plants solitary or tufted, with bulbils on caudices. |
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 ± absent; blade oblanceolate, 6–15(–30) cm, ± fleshy, base cuneate, margins subentire, sometimes 1–3-toothed distally, eciliate or sparsely ciliate, surfaces glabrate. |
Inflorescences | 10–30+-flowered, open, lax, flat-topped thyrses, 20–65(–85) cm, glabrous proximally, purple-tipped subsessile-glandular distally. |
2(–5+)-flowered, (proximal flowers replaced by bulbils), narrow, branched, sometimes ± open, cylindric thyrses, sometimes solitary flowers, 5–15 cm, glabrous or sparsely purple-tipped stipitate-glandular. (Pedicels erect to ascending.) Flowers: sepals reflexed, lanceolate; petals white, each with 1–2 basal yellow spots, lanceolate, clawed, 3–8 mm, longer than sepals; filaments linear, flattened; pistils connate 1/2+ their lengths; ovary superior, (to 1/3 adnate to hypanthium). |
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. |
|
Capsules | green to purple, ± folliclelike. |
green to purplish, valvate. |
2n | = 24, 48. |
= 56. |
Micranthes odontoloma |
Micranthes foliolosa |
|
Phenology | Flowering summer–early autumn. | Flowering late summer. |
Habitat | Wet meadows and stream banks | Mossy tundra near streams and flushes, wet, rocky slopes, snowbeds |
Elevation | 1500-4000 m (4900-13100 ft) | 0-1800 m (0-5900 ft) |
Distribution |
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC
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AK; CO; ME; NL; NT; NU; QC; YT; Greenland; n Europe; n Asia |
Source | FNA vol. 8, p. 56. | FNA vol. 8, p. 57. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga odontoloma | Saxifraga foliolosa, Saxifraga foliolosa var. multiflora, Saxifraga stellaris subsp. comosa, Saxifraga stellaris var. comosa |
Name authority | (Piper) A. Heller: Muhlenbergia 8: 60. 1912 , | (R. Brown) Gornall: J. Bot. Res. Inst. Texas 1: 1020. 2007 , |
Web links |
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