Micranthes palmeri |
Micranthes caroliniana |
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Palmer's saxifrage |
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Habit | Plants solitary or in clumps, with bulbils on caudices. | Plants solitary or tufted, with bulbils on caudices. |
Leaves | basal; petiole flattened, 1–9 cm; blade ovate to elliptic, 2–8 cm, slightly fleshy, base attenuate, margins entire or subentire, ciliate, surfaces tangled, reddish brown-hairy. |
basal; petiole flattened, 1–10 cm; blade broadly ovate to elliptic, 2–14 cm, thin to slightly fleshy, base truncate, margins deeply dentate (teeth 2+ mm), sparsely glandular-ciliate, surfaces densely white-hairy. |
Inflorescences | 30+-flowered, (flowers sometimes almost secund), very open, lax thyrses, 6–50 cm, hairy proximally, densely so distally. |
15+-flowered, open, lax thyrses, 10–50 cm, purple-tipped stipitate-glandular. |
Flowers | sepals erect to ascending, ovate to triangular; petals white, not spotted, broadly oblong to elliptic, not clawed, 3–6 mm, 2+ times as long as sepals; filaments linear, flattened; pistils distinct almost to base; ovary ± superior, (to 1/3 adnate to hypanthium). |
sepals reflexed, oblong; petals white, with 2 basal yellow spots (distinct even in dried material), ovate to elliptic, short-clawed, 2–4 mm, much longer than sepals; filaments elongate, (longer than petals), club-shaped; pistils distinct almost to base; ovary superior. |
Capsules | green with reddish or purplish tinge, or reddish purple, folliclelike. |
greenish to yellow, folliclelike. |
Micranthes palmeri |
Micranthes caroliniana |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Rocky, open woodlands | Moist soil at bases of vertical or overhanging rock outcrops, seeps |
Elevation | 100-1000 m (300-3300 ft) | 500-1200 m (1600-3900 ft) |
Distribution |
AR; OK |
NC; TN; VA; WV |
Source | FNA vol. 8, p. 61. | FNA vol. 8, p. 61. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Saxifraga palmeri, Saxifraga virginiensis var. subintegra | Saxifraga caroliniana |
Name authority | Bush: Amer. Midl. Naturalist 11: 221. 1928 , | (A. Gray) Small: in N. L. Britton et al., N. Amer. Fl. 22: 146. (1905) |
Web links |