Stem creeping, rooting at nodes, rather stout, sts below ground, emitting lfy ± erect branches 2-5 cm. tall. Lvs 2-5 cm. long including petiole, close-set, hairy to glab., obovate to narrow-obovate, obtuse, gradually narrowed to petiole, entire or obscurely sinuate. Peduncles 1-3-fld, erect, glab. to pilose; bracts 1-2, linear-subulate. Calyx campanulate, laxly clad in white spreading hairs, not angled. Corolla-tube ± 1 cm. long; limb ± 1 cm. long, white with yellow throat; upper lip erect; lower larger, spreading. Stamens 4; 2 lower = corolla-tube, 2 upper shorter. Style 2-lobed. Capsule 8-9 mm. long, ovoid, enclosed in persistent calyx.

n = 52

2n = 104