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FNA | Family List | FNA Vol. 8 | Saxifragaceae | Micranthes

7. Micranthes foliolosa (R. Brown) Gornall, J. Bot. Res. Inst. Texas. 1: 1020. 2007.

Leafystemmed saxifrage, saxifrage bulbilles

Saxifraga foliolosa R. Brown, Chlor. Melvill., 17. 1823; S. foliolosa var. multiflora Hultén; S. stellaris Linnaeus subsp. comosa (Retzius) Braun-Blanquet; S. stellaris var. comosa Retzius

Plants solitary or tufted, with bulbils on caudices. Leaves basal; petiole ± absent; blade oblanceolate, 6-15(-30) cm, ± fleshy, base cuneate, margins subentire, sometimes 1-3-toothed distally, eciliate or sparsely ciliate, surfaces glabrate. Inflorescences 2(-5+)-flowered, (proximal flowers replaced by bulbils), narrow, branched, sometimes ± open, cylindric thyrses, sometimes solitary flowers, 5-15 cm, glabrous or sparsely purple-tipped stipitate-glandular. ( Pedicels erect to ascending.) Flowers: sepals reflexed, lanceolate; petals white, each with 1-2 basal yellow spots, lanceolate, clawed, 3-8 mm, longer than sepals; filaments linear, flattened; pistils connate 1/2+ their lengths; ovary superior, (to 1/3 adnate to hypanthium). Capsules green to purplish, valvate. 2n = 56.

Flowering late summer. Mossy tundra near streams and flushes, wet, rocky slopes, snowbeds; 0-1800 m; Greenland; Nfld. and Labr., N.W.T., Nunavut, Que., Yukon; Alaska, Colo., Maine; n Europe; n Asia.


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