Micranthes eriophora |
Micranthes integrifolia |
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redfuzz saxifrage |
Columbian saxifrage, grassland saxifrage, northwestern saxifrage, smooth leaf saxifrage, swamp saxifrage, whole-leaf saxifrage |
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Habit | Plants solitary or in groups, with bulbils on caudices. | Plants solitary or in clumps, (sometimes gynodioecious), often with bulbils on caudices, or short-rhizomatous. |
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, 0.5–4 cm; blade narrowly to broadly ovate, 2–7 cm, ± leathery, base attenuate, margins entire or minutely denticulate, usually ciliate, surfaces sparsely to moderately 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. |
(15–)20+-flowered, open to ± congested, conic thyrses, (usually branched, lateral cymules ± open), 12–35 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 spreading to slightly reflexed, ovate; petals white, not spotted, obovate, clawed, 2–4 mm, longer than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary 1/2+ inferior. |
Capsules | purplish, valvate. |
reddish or purplish, folliclelike. |
2n | = 38. |
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Micranthes eriophora |
Micranthes integrifolia |
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Phenology | Flowering late winter–early summer. | Flowering late winter–spring. |
Habitat | Rocky slopes and ledges | Vernally moist meadows, grassy slopes, rock outcrops |
Elevation | 1900-3000 m (6200-9800 ft) | 0-1800 m (0-5900 ft) |
Distribution |
AZ; NM; Mexico (Baja California, Chihuahua)
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CA; OR; WA; BC
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Discussion | The occasional occurrence of sterile pollen has been noted in this as well as in other species of Micranthes (as Saxifraga, K. I. Beamish 1961). Some populations exhibit gynodioecism (P. E. Elvander 1982). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 8, p. 64. | FNA vol. 8, p. 67. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga eriophora | Saxifraga integrifolia |
Name authority | (S. Watson) Small: in N. L. Britton et al., N. Amer. Fl. 22: 142. (1905) | (Hooker) Small: in N. L. Britton et al., N. Amer. Fl. 22: 137. 1905 , |
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