条裂大黄 tiao lie da huang

Herbs large, ca. 1 m tall. Petiole of basal leaf subterete, shorter than to about as long as blade, shortly strigose; leaf blade large, subovate, 25-36 × 20-24 cm, palmately divided into pinnatisect lobes, all lobes lanceolate or nearly linear, apex acute; ocrea ca. 7 cm, abaxially muricate. Stem leaves smaller. Panicle triangular, large. Pedicel 1.5-2 mm, jointed at base. Tepals yellow-white or green-white, obovate-elliptic or broadly elliptic; inner 3 larger, ca. 2.5 mm, margin irregular. Flower disk irregularly circular, fleshy. Ovary subovoid; stigma irregularly inflated. Fruit unknown.

* Hills; ca. 3000 m. N Sichuan.

One of us (Grabovskaya-Borodina) believes that this is a synonym of Rheum palmatum.