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Minuartia
See list of 6 species in this genusReferences: Weaver (1970), Rabeler et al. (2005).
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1a. Sepals nerveless or obscurely nerved
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2a. Leaf blades rigid, triangular in cross-section; stem usually glandular-pubescent above; sepals ovate to broad-ovate; petals entire at apex
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2b. Leaf blades soft, flat; stem glabrous; sepals oblong to oblong-ovate; petals slightly retuse at apex
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3a. Plants perennial, forming small mats, with often dense, sterile, leafy shoots at the base of the plant, found usually in alpine settings at or above 1000 m elevation
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3b. Plants annual, not forming mats, lacking sterile, leafy shoots at the base of the plant, found usually on acidic ridges, balds, and outcrops well below 1000 m elevation
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1b. Sepals with 3 or 5 strong, longitudinal ribs
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4a. Sepals herbaceous, rounded at apex [Fig. 564]; lower portion of branches densely clothed by coriaceous, marcescent leaves; capsules 6–10 mm long, with valves that are emarginate at the apex
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4b. Sepals rigid, acute at apex; leaves deciduous or marcescent, but not densely clothing the lower portion of branches; capsules 3–5 mm long, with valves that are entire at apex
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5a. Tufts of leaves produced in the axils of the principal leaves; leaf blades with the midvein more prominent than the lateral veins; petals 5–8 mm long, longer than the sepals; seeds 0.8–1.5 mm long
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5b. Axillary leaves not produced; leaf blades with 3 ± equally prominent veins; petals 2–4.2 mm long, usually shorter than the sepals; seeds 0.4–0.7 mm long
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Each photo represents one species in this genus.