Sedum stahlii Solms

Sedum stahlii Solms, Sam. Bot. Gart. Stra^sb. 1900 : 4. 1900
Perennial, much branched, green or tinged with red, very fleshy, finely pubescent, the branches weak, spreading, 2 dm. long or less, or the flowering ones ascending. Leaves opposite or subopposite, sessile, ovoid-oblong, obtuse, nearly round in cross-section, 1-2 cm. long, about half as thick as long, reddish ; cymes terminal, few-forked, the recurved branches 6 cm. long or less; flowers almost sessile; sepals narrowly oblong, obtuse, puberulent, about half as long as the petals ; petals bright-yellow, lanceolate, spreading, about 8 mm. long, acuminate, with a short horn-like appendage below the tip on the outer side ; stamens shorter than the petals ; carpels erect.
Type locality ; Near Tehuacan , Puebla, Mexico. Distribution : Known only from the type locality.