Herbs. Stems flexuous, densely retrorse tawny hirsute. Petiole 2-5 cm, densely tawny hirsute; leaf blade elliptic, 5.5-13 × 2-5 cm, papery, adaxially sparsely hirtellous when young, subglabrescent, abaxially tawny, sparsely hirsute, densely hirsute on veins, base cuneate, margin remotely undulate-serrate above base, apex acute; lateral veins 5 or 6 pairs, conspicuously elevated abaxially. Verticillasters 8-10-flowered, subtended at base by minute subulate bracteoles ca. 4 mm. Pedicel short to obsolete. Fruiting calyx tubular, slightly open, red becoming brown when dry, 8-9 mm, inconspicuously 5-veined; teeth ca. 2 mm, broadly triangular, subulate, reflexed. Corolla not seen. Nutlets unknown. Fr. Jan.

* Stony areas in tropical forests; ca. 1300 m. Yunnan.