Micranthes apetala |
Micranthes californica |
|
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tiny swamp saxifrage, western swamp saxifrage |
California saxifrage, Greene's saxifrage |
|
Habit | Plants solitary or in clusters, with bulbils on caudices, or short-rhizomatous. | Plants solitary or in clumps, with bulbils on caudices, or rhizomatous. |
Leaves | basal; petiole flattened, 0.5–3 cm; blade ± ovate, 2–5 cm, ± fleshy, base attenuate, margins entire or crenulate, eciliate, surfaces hairy. |
basal; petiole flattened, 2–5 cm; blade ovate, 2–7 cm, fleshy, base attenuate, margins serrate, rarely subentire, ciliate, surfaces hairy. |
Inflorescences | 10–25-flowered, congested, glomerate thyrses, 4–15 cm, pink- to purple-tipped stipitate-glandular (hairs uniseriate). |
20+-flowered, (flowers often secund), open, lax thyrses with distant lateral branches, 15–30(–40) cm, purple-tipped stipitate-glandular. |
Flowers | sepals erect to ascending, ovate; petals absent, sometimes 1–5, white to greenish white, not spotted, linear to oblong, clawed, 1–2 mm, much shorter than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary 1/2+ inferior. |
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. |
Capsules | reddish or purplish, folliclelike. |
purplish, folliclelike. |
2n | = 38. |
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Micranthes apetala |
Micranthes californica |
|
Phenology | Flowering early spring–summer. | Flowering winter–early spring. |
Habitat | Vernally moist meadows, wet depressions on mountain slopes | Shaded fields, rocky or unstable slopes, stream banks |
Elevation | 600-2800 m (2000-9200 ft) | 0-1500 m (0-4900 ft) |
Distribution |
ID; MT; OR; WA
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CA; OR; Mexico (Baja California)
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Source | FNA vol. 8, p. 68. | FNA vol. 8, p. 64. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga apetala, Saxifraga integrifolia var. apetala | Saxifraga californica, M. parvifolia, Saxifraga fallax, Saxifraga hallii, Saxifraga parvifolia, Saxifraga virginiensis var. californica |
Name authority | (Piper) Small: in N. L. Britton et al., N. Amer. Fl. 22: 135. 1905 , | (Greene) Small: in N. L. Britton et al., N. Amer. Fl. 22: 140. (1905) |
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