绰斯甲乌头 chuo si jia wu tou

Caudex unknown. Stem dark purple, ca. 1 m tall, slightly retrorse and appressed pubescent. Middle cauline leaves shortly petiolate; petiole ca. 2.4 cm; leaf blade pentagonal, ca. 6.5 × 9 cm, both surfaces sparsely appressed pubescent, base cordate, 3-sect; central segment narrowly rhombic, apex long acuminate, 3-fid at middle; lateral segments obliquely flabellate, unequally 2-parted. Inflorescence ca. 12 cm, 9-flowered; proximal bracts leaflike, distal ones linear; rachis and pedicels densely retrorse pubescent. Pedicels to 3.5 cm, with 2 bracteoles below middle; bracteoles narrowly linear, 4--5 × ca. 0.4 mm. Sepals purplish, external margin sparsely retrorse pubescent at lower part, elsewhere subglabrous; lower sepals linear or narrowly linear, ca. 1 cm × 1--2 mm; lateral sepals obliquely broadly obovate, ca. 1.4 cm; upper sepal galeate, ca. 1.7 cm high, ca. 1.4 cm from base to beak. Petals sparsely pubescent; limb ca. 9 mm; lip ca. 4.5 mm, 2-fid at apex; spur incurved, subglobose, ca. 1.1 mm. Stamens glabrous; filaments entire. Carpels 4, glabrous. Fl. Aug.

* Picea forests; ca. 3400 m. NW Sichuan.