Claytonia L.
Glabrous taprooted rhizomatous or cormose annual or perennial herbs, often fleshy. Rosette solitary; rosette lvs late-deciduous. Stems not branched, all reproductive, erect. Stem lvs 2, opposite, free or connate. Infl. terminal, usually a raceme, bracteate at least below. Sepals persistent. Petals 5, shortly united at base. Stamens 3 or 5. Ovary superior, of 3 fused carpels; style branches 3. Ovules 3 or 6. Capsule 1-locular, dehiscing by 3 valves. Seeds 1-3-(6).
25 spp., N. America, N. and E. Siberia, Mongolia. Naturalised sp. 1.