Microtoena albescens C. Y. Wu & S. J. Hsuan

Herbs. Stems ca. 60 cm tall, sparsely bristly pubescent. Petiole 1-5 cm, slender; leaf blade broadly ovate, 5.2-5.7 × ca. 4.2 cm on main stem, 2.1-2.4 × 1.4-1.7 cm on lateral branches, sparsely hirsute, base truncate to rounded, margin mucronate crenate-serrate, apex short acuminate to acute. Cymes axillary, 2- or 3-flowered, secund; peduncle 3-5 mm, pilose; bracts ca. 2 mm. Calyx ca. 5 × 2.5 mm, glandular puberulent, finely floccose-pilose at base, margins ciliolate; teeth lanceolate, 1.5-1.7 mm, posterior tooth ca. 3 mm; fruiting calyx tubular, 8.5-10 × 4.5 mm, base rounded, distinctly netted; teeth 3-3.5 mm, posterior tooth to 6 mm. Corolla white, ca. 2.3 cm; tube ca. 1.5 mm wide at base, dilated to 6 mm at throat; upper lip ca. 5.5 mm; lower lip subequal to upper, middle lobe circular, 2 mm in diam. Nutlets unknown. Fl. Oct.

* Forests. Guizhou.