var. micranthum is a perennial that grows in the shade of a tree
in mountainous districts; stems grow to 20-50cm in height. With
5-20mm-in-length petioles, leaves are in the shape of an ovate to
oblong-ovate, 2-3cm long, with bright glandular dots on the lower
surfaces. Corollas are white, somewhat tinging light purple, with a
length of 5-6 millimeters. Bloom time: August-October.