Sedum humifusum Rose

Sedum humifusum Rose, Contr. U. S. Nat. Herb. 13: 298. 1911
Plants creeping, forming a dense moss-like carpet, sending off hundreds of small branches 1 cm. or less long bearing a compact rosette of leaves. Leaves closely imbricate, nearly orbicular, about 4 mm. in diameter, flattened but fleshy, ciliate; flowers solitary, terminal, the peduncle proper 1 cm. or less long, bearing a few leaves; sepals distinct or nearly so, leaf-like, very thick, ciliate, 2 mm. long; corona about 10 mm. broad; petals yellow, distinct, widely spreading; stamens 10, erect; scales minute, orange-colored; carpels, in flower at least, erect.
Type locality: Near San Juan del Rio, Queretaro.
Distribution: Queretaro.