Micranthes howellii |
Micranthes gormanii |
|
---|---|---|
Howell's saxifrage |
Gorman's saxifrage |
|
Habit | Plants solitary or in groups, with bulbils on caudices. | Plants in groups or, sometimes, almost mat-forming, rhizomatous. |
Leaves | basal; petiole flattened, 1–4 cm; blade oblong to narrowly ovate, 1–2(–3) cm, ± fleshy, base attenuate, margins sharply serrate, eciliate, surfaces sparsely tangled, reddish brown-hairy abaxially, glabrous adaxially. |
basal; petiole flattened, 5–7.5 cm; blade ovate to elliptic, 3–4 cm, fleshy, base attenuate, margins shallowly crenate-serrate, sparsely ciliate, surfaces tangled, reddish brown-hairy. |
Inflorescences | 5–10(–20)-flowered, very open, lax, ± flat-topped cymes or thyrses, 5–10(–20) cm, glabrate to sparsely purple-tipped stipitate-glandular; (bracts glabrous). |
(10–)30+-flowered, open, lax, strongly divaricately branched, conic thyrses, 8–30 cm, purple-tipped stipitate-glandular; (bracts glabrous, proximal marginally ciliate). |
Flowers | sepals strongly reflexed, elliptic, (surfaces glabrous); petals white, not spotted, obovate to elliptic, clawed, 2.5–4.5 mm, longer than sepals; filaments linear, flattened; pistils distinct almost to base; ovary ± superior. |
sepals ascending, ovate to oblong, (margins eciliate, surfaces glabrous); petals white, not spotted, obovate to ± round, clawed, ca. 2 mm, ca. 1.5 times as long as sepals; filaments linear, flattened; pistils distinct almost to base; ovary nearly 1/3 inferior, (to 1/3 adnate to hypanthium). |
Capsules | purple, valvate. |
greenish to reddish purple, folliclelike. |
2n | = 20, 38, 40. |
|
Micranthes howellii |
Micranthes gormanii |
|
Phenology | Flowering early spring–early summer. | Flowering spring. |
Habitat | Wet, rocky ledges and crevices | Wet, rocky ledges and slopes |
Elevation | 0-900 m (0-3000 ft) | 0-1000 m (0-3300 ft) |
Distribution |
CA; OR
|
OR; WA
|
Source | FNA vol. 8, p. 63. | FNA vol. 8, p. 62. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga howellii | Saxifraga gormanii, Saxifraga occidentalis var. dentata |
Name authority | (Greene) Small: in N. L. Britton et al., N. Amer. Fl. 22: 140. (1905) | (Suksdorf) Brouillet & Gornall: J. Bot. Res. Inst. Texas 1: 1020. 2007 , |
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