Micranthes eriophora |
Micranthes tempestiva |
|
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redfuzz saxifrage |
storm saxifrage |
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Habit | Plants solitary or in groups, with bulbils on caudices. | Plants solitary or in groups, 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 indistinct (leaves appearing sessile), flattened, 2–8+ mm; blade oblanceolate to obovate, 4–10(–30) mm, fleshy, base cuneate to attenuate, margins entire or minutely denticulate, eciliate, (apex acute to obtuse or rounded), surfaces ± glabrous; (venation pinnate or palmate). |
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. |
5–15(–20)-flowered, congested thyrses, 3–10(–15) cm, glabrous or sparsely 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, ovate; petals white, not spotted, linear to obovate, clawed, to 1.5 mm, shorter than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary inferior. |
Capsules | purplish, valvate. |
reddish purple, valvate. |
2n | = 10. |
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Micranthes eriophora |
Micranthes tempestiva |
|
Phenology | Flowering late winter–early summer. | Flowering summer. |
Habitat | Rocky slopes and ledges | Rocky ledges, slopes, or snow-bed meadows |
Elevation | 1900-3000 m (6200-9800 ft) | 2400-3200 m (7900-10500 ft) |
Distribution |
AZ; NM; Mexico (Baja California, Chihuahua)
|
MT |
Discussion | Of conservation concern. Micranthes tempestiva is known only from the Bitterroot Mountains and Anaconda Range. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 8, p. 64. | FNA vol. 8, p. 69. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga eriophora | Saxifraga tempestiva |
Name authority | (S. Watson) Small: in N. L. Britton et al., N. Amer. Fl. 22: 142. (1905) | (Elvander & Denton) Brouillet & Gornall: J. Bot. Res. Inst. Texas 1: 1021. 2007 , |
Web links |