厚叶乌头 hou ye wu tou

Caudex terete, to 10 cm, ca. 1 cm diam. Stem 23--95 cm tall, simple or shortly branched below inflorescence, densely pubescent, sparsely 1- or 2-leaved. Basal leaves 1--3, long petiolate; petiole 18--21 cm; leaf blade suborbicular, 7--10 × 10--21 cm, subleathery, both surfaces becoming glabrous, base deeply cordate, 3-parted to subbase; central lobe broadly obtrapezoid, 3-lobed, margin dentate; lateral lobes flabellate, 2-lobed to middle. Cauline leaves shortly petiolate, small. Inflorescence ca. 15 cm, sparsely flowered; rachis and pedicels densely spreading pubescent; bracts small, lowermost 3-fid, distal ones lanceolate. Proximal pedicels to 2 cm, to 4 cm at fruiting, distal ones shorter, with 2 bracteoles at middle; bracteoles linear-lanceolate, small. Sepals green-yellow, both surfaces spreading pubescent; lower sepals ca. 1 cm; lateral sepals ca. 1.1 cm; upper sepal oblique upward, galeate-navicular, lower margin slightly concave, 2.2--2.4 cm. Petals sparsely pubescent; lip small, slightly concave; spur incurved, saccate, short. Stamens glabrous; filaments entire. Carpels 5, densely hispid. Follicles erect, ca. 2 cm. Seeds 3--3.5 mm wide. Fl. Oct.

* Mountains; ca. 2600 m. NW Yunnan (Zhongdian Xian).