Micranthes howellii

(Greene) Small

in N. L. Britton et al., N. Amer. Fl. 22: 140. 1905,.

Basionym: Saxifraga howellii Greene Pittonia 2: 163. 1891
Treatment appears in FNA Volume 8. Treatment on page 63. Mentioned on page 54.

Plants solitary or in groups, with bulbils on caudices. 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. 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). 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. Capsules purple, valvate.


Phenology: Flowering early spring–early summer.
Habitat: Wet, rocky ledges and crevices
Elevation: 0-900 m

Discussion

Selected References

None.

Lower Taxa

None.