Micranthes spicata |
Micranthes nudicaulis |
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Habit | Plants solitary or tufted, short, thick-rhizomatous. | Plants solitary or in clusters, stoloniferous, rhizomatous. |
Leaves | basal; petiole rounded, 4–15 cm; blade round, ovate, or reniform, 3–15 cm, thin, base cordate, margins serrate to dentate, ciliate, surfaces hairy to glabrate. |
basal; petiole rounded, 0.5–3.5 cm, (base expanded, stipulelike); blade somewhat reniform, (± evenly lobed), 0.5–2.5 cm, ± fleshy, base cordate to truncate, margins entire, sparsely glandular-ciliate, surfaces glabrous. |
Inflorescences | 15+-flowered, congested, spikelike thyrses, 15–50(–70) cm, tangled, pink- to purple-tipped stipitate-glandular. |
5–20-flowered, branched cymes or flat-topped thyrses, 5–16 cm, sparsely purple-tipped stipitate-glandular. |
Flowers | sepals reflexed, oblong to ovate; petals cream to yellowish, not spotted, oblong, not clawed, 3–4.5 mm, longer than sepals; filaments narrowly club-shaped; pistils connate at least 1/2 their lengths; ovary superior, (to 1/3 adnate to hypanthium). |
sepals reflexed or, sometimes, spreading, triangular; petals white to cream (rarely pink), not spotted, broadly elliptic to ovate, short-clawed, 4–5 mm, longer than sepals; filaments linear, flattened; pistils connate 1/2+ their lengths; ovary superior, (to 1/3 adnate to hypanthium). |
Capsules | green, purplish tinged, ± folliclelike, (basally connate). |
dark purple-black, valvate. |
2n | = 40. |
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Micranthes spicata |
Micranthes nudicaulis |
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Phenology | Flowering summer. | Flowering summer. |
Habitat | Wet tundra, heaths, moist, rocky areas, streamsides | Wet flushes, stream banks |
Elevation | 0-1700 m (0-5600 ft) | 0-800 m (0-2600 ft) |
Distribution |
AK; YT |
AK; e Asia (Russian Far East) |
Source | FNA vol. 8, p. 57. | FNA vol. 8, p. 59. |
Parent taxa | Saxifragaceae > Micranthes | Saxifragaceae > Micranthes |
Sibling taxa | ||
Synonyms | Saxifraga spicata | Saxifraga nudicaulis |
Name authority | (D. Don) Small: in N. L. Britton et al., N. Amer. Fl. 22: 146. (1905) | (D. Don) Gornall & H. Ohba: J. Bot. Res. Inst. Texas 1: 1021. (2007) |
Web links |