Micranthes californica |
Micranthes caroliniana |
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California saxifrage, Greene's saxifrage |
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Habit | Plants solitary or in clumps, with bulbils on caudices, or rhizomatous. | Plants solitary or tufted, with bulbils on caudices. |
Leaves | basal; petiole flattened, 2–5 cm; blade ovate, 2–7 cm, fleshy, base attenuate, margins serrate, rarely subentire, ciliate, surfaces 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 | 20+-flowered, (flowers often secund), open, lax thyrses with distant lateral branches, 15–30(–40) cm, purple-tipped stipitate-glandular. |
15+-flowered, open, lax thyrses, 10–50 cm, purple-tipped stipitate-glandular. |
Flowers | sepals reflexed, sometimes spreading, triangular to ovate; petals white, not spotted, elliptic to oblong, clawed, 2.5–4.5 mm, longer than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary 1/2+ inferior, appearing superior in fruit. |
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 | purplish, folliclelike. |
greenish to yellow, folliclelike. |
Micranthes californica |
Micranthes caroliniana |
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Phenology | Flowering winter–early spring. | Flowering spring. |
Habitat | Shaded fields, rocky or unstable slopes, stream banks | Moist soil at bases of vertical or overhanging rock outcrops, seeps |
Elevation | 0-1500 m (0-4900 ft) | 500-1200 m (1600-3900 ft) |
Distribution |
CA; OR; Mexico (Baja California)
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NC; TN; VA; WV |
Source | FNA vol. 8, p. 64. | FNA vol. 8, p. 61. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga californica, M. parvifolia, Saxifraga fallax, Saxifraga hallii, Saxifraga parvifolia, Saxifraga virginiensis var. californica | Saxifraga caroliniana |
Name authority | (Greene) Small: in N. L. Britton et al., N. Amer. Fl. 22: 140. (1905) | (A. Gray) Small: in N. L. Britton et al., N. Amer. Fl. 22: 146. (1905) |
Web links |