Micranthes apetala |
Micranthes foliolosa |
|
---|---|---|
tiny swamp saxifrage, western swamp saxifrage |
leafy stem saxifrage, naked-bulbil small-flower-saxifrage, saxifrage à bulbilles |
|
Habit | Plants solitary or in clusters, with bulbils on caudices, or short-rhizomatous. | Plants solitary or tufted, with bulbils on caudices. |
Leaves | basal; petiole flattened, 0.5–3 cm; blade ± ovate, 2–5 cm, ± fleshy, base attenuate, margins entire or crenulate, eciliate, surfaces hairy. |
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 | 10–25-flowered, congested, glomerate thyrses, 4–15 cm, pink- to purple-tipped stipitate-glandular (hairs uniseriate). |
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 erect to ascending, ovate; petals absent, sometimes 1–5, white to greenish white, not spotted, linear to oblong, clawed, 1–2 mm, much shorter than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary 1/2+ inferior. |
|
Capsules | reddish or purplish, folliclelike. |
green to purplish, valvate. |
2n | = 38. |
= 56. |
Micranthes apetala |
Micranthes foliolosa |
|
Phenology | Flowering early spring–summer. | Flowering late summer. |
Habitat | Vernally moist meadows, wet depressions on mountain slopes | Mossy tundra near streams and flushes, wet, rocky slopes, snowbeds |
Elevation | 600-2800 m (2000-9200 ft) | 0-1800 m (0-5900 ft) |
Distribution |
ID; MT; OR; WA
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AK; CO; ME; NL; NT; NU; QC; YT; Greenland; n Europe; n Asia |
Source | FNA vol. 8, p. 68. | FNA vol. 8, p. 57. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga apetala, Saxifraga integrifolia var. apetala | Saxifraga foliolosa, Saxifraga foliolosa var. multiflora, Saxifraga stellaris subsp. comosa, Saxifraga stellaris var. comosa |
Name authority | (Piper) Small: in N. L. Britton et al., N. Amer. Fl. 22: 135. 1905 , | (R. Brown) Gornall: J. Bot. Res. Inst. Texas 1: 1020. 2007 , |
Web links |
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