Micranthes apetala |
Micranthes eriophora |
|
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tiny swamp saxifrage, western swamp saxifrage |
redfuzz saxifrage |
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Habit | Plants solitary or in clusters, with bulbils on caudices, or short-rhizomatous. | Plants solitary or in groups, 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 flattened, 0.5–2.5 cm; blade ovate to elliptic, 1–2 cm, ± fleshy, base attenuate, margins sharply serrate, sparsely to densely ciliate (some glandular-tipped), surfaces densely tangled, reddish brown-hairy abaxially, glabrous adaxially. |
Inflorescences | 10–25-flowered, congested, glomerate thyrses, 4–15 cm, pink- to purple-tipped stipitate-glandular (hairs uniseriate). |
10+-flowered, (flowers often secund), very open, lax, often flat-topped thyrses with distant lateral branches, 6–25 cm, pink- to purplish-tipped stipitate-glandular. |
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. |
sepals erect, triangular; petals white, sometimes purplish-tipped, not spotted, obovate to elliptic, not clawed or barely clawed, 4–7 mm, ca. 2 times as long as sepals; filaments linear, flattened; pistils distinct almost to base; ovary 1/3–1/2 inferior. |
Capsules | reddish or purplish, folliclelike. |
purplish, valvate. |
2n | = 38. |
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Micranthes apetala |
Micranthes eriophora |
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Phenology | Flowering early spring–summer. | Flowering late winter–early summer. |
Habitat | Vernally moist meadows, wet depressions on mountain slopes | Rocky slopes and ledges |
Elevation | 600-2800 m (2000-9200 ft) | 1900-3000 m (6200-9800 ft) |
Distribution |
ID; MT; OR; WA
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AZ; NM; Mexico (Baja California, Chihuahua)
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Source | FNA vol. 8, p. 68. | FNA vol. 8, p. 64. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga apetala, Saxifraga integrifolia var. apetala | Saxifraga eriophora |
Name authority | (Piper) Small: in N. L. Britton et al., N. Amer. Fl. 22: 135. 1905 , | (S. Watson) Small: in N. L. Britton et al., N. Amer. Fl. 22: 142. (1905) |
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