Heuchera missouriensis

This species was described by Rosendahl in 1951, but has only recently been revived based on molecular and morphological data (Taxon, 2015). It is perhaps the most distinctive member of the Heuchera parviflora complex. Like H. parviflora in the narrow sense, it is a sandstone plant (major formations it is associated with are the Dripping Stone Escarpment, the southern Cumberland Escarpment, and the Shawnee Hills region), with very rare limestone reports.

The foliage images come from a wild roadside population in western Kentucky. These images illustrate well the deep sinuses that partially distinguish this taxon. Additionally, small insects can be seen stuck on the leaves in the right-hand image, showing that the leaves are viscid (sticky). The floral images come from northern Alabama, and show the non-pendent flowers and short styles that are also indicative of this species.

Leaves:

Flowers:

Seeds: