Sinningia canescens and Sinningia leucotricha
Photo by Ron
Grown at Geneva Botanical Garden
Sinningia canescens and Sinningia leucotricha are similar species. The former (on the left) is larger and coarser, while the latter has a particularly decorative sheen of silvery hairs on the leaves. Both grow best with a portion of the tuber exposed above ground -- the exposed part of the tuber is often referred to as a "caudex". A closeup of the flowers can be seen here.