Petrocosmea rosettifolia

Description

Petrocosmea rosettifolia is a species of flowering plant in the family Gesneriaceae. A new species Petrocosmea cryptica J.M.H.Shaw was described in 2011, long known in cultivation but mistakenly identified as P. rosettifolia. The petioles of this species are puberulent and grow to approximately 4 cm. The leaves are sparsely pubescent, and have a broadly ovate to orbicular or broadly elliptic shape. They grow to about 0.5 to 4.0 cm x 0.4 to 0.3 cm. Petrocosmea is a genus of the family Gesneriaceae, the African violet family. Most of the species within this genus are endemic to high-altitude areas in Western China, although some are native to other parts of Asia. It is a rosette forming genus that generally grows on wet mossy rocks or forests. The genus was discovered in China by Augustine Henry and was first described in 1887 by Daniel Oliver (Prof. of Botany, University College, London).