Micranthes eriophora |
Micranthes nidifica |
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redfuzz saxifrage |
Columbia saxifrage, meadow saxifrage, peak saxifrage, swamp saxifrage |
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Habit | Plants solitary or in groups, with bulbils on caudices. | Plants solitary or in clumps, with bulbils on caudices. |
Leaves | 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. |
basal; petiole flattened, 1.5–5.5 cm; blade ± ovate to elliptic, 3–6(–7.5) cm, fleshy, base attenuate, margins entire or minutely denticulate, ciliate, surfaces glabrate to sparsely hairy. |
Inflorescences | 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. |
30+-flowered, lax, cylindric thyrses with 3–10, ± compact cymules, 10–30 cm, ± densely pink- to purple-tipped stipitate-glandular. |
Flowers | 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. |
sepals strongly reflexed, broadly ovate to deltate; petals white to greenish white, not spotted, usually elliptic to obovate, clawed, 1–1.9 mm, equaling or shorter than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary 1/2+ inferior. |
Capsules | purplish, valvate. |
green or reddish purple, folliclelike. |
2n | = 38. |
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Micranthes eriophora |
Micranthes nidifica |
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Phenology | Flowering late winter–early summer. | Flowering spring–summer. |
Habitat | Rocky slopes and ledges | Open meadows, shrub-lands, gravelly slopes, edges of and open pine forests |
Elevation | 1900-3000 m (6200-9800 ft) | 100-2600 m (300-8500 ft) |
Distribution |
AZ; NM; Mexico (Baja California, Chihuahua)
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CA; ID; MT; NV; OR; UT; WA; WY; BC
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Discussion | Micranthes nidifica is polymorphic and merges to some extent with M. fragosa in limited areas of southern Washington and northern Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 8, p. 64. | FNA vol. 8, p. 68. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga eriophora | Saxifraga nidifica, M. plantaginea, Saxifraga columbiana, Saxifraga integrifolia var. columbiana, Saxifraga integrifolia var. leptopetala, Saxifraga montana, Saxifraga plantaginea |
Name authority | (S. Watson) Small: in N. L. Britton et al., N. Amer. Fl. 22: 142. (1905) | (Greene) Small: in N. L. Britton et al., N. Amer. Fl. 22: 134. (1905) |
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