Heuchera wellsiae

I described this species in 2014 based on preserved museum material. It comes from wet cliffs in the northern Sierra Madre Occidentale (north-western Mexico). It appears to be the sister species of Heuchera rosendahliae (also described in 2014); molecular data and morphology support this view. H. wellsiae appears to be very rare.

I made the drawing below as part of the original species description.