Description from Flora of China
Pancovia delavayi Franchet, Bull. Soc. Bot. France 33: 461. 1886.
Trees, deciduous, ca. 10 m tall. Bark black-brown; branches pubescent. Leaves with petiole 25-35 cm or longer, axis pilose; leaflets 4-6(or 7) pairs, opposite or sometimes nearly alternate; petiolules usually less than 1 cm; blades ovate or ovate-oblong, bilaterally often asymmetrical, 6-14 × 2.5-5 cm, papery, slightly nitid, only villous on midvein and lateral veins, abaxially sparsely villous or subglabrous, rarely glabrous, lateral veins to 18 pairs, slender, base obtuse, apex acute. Inflorescences terminal, erect, often 3 × branched, main rachis and branches stronger, villous. Flowers zygomorphic; buds globose. Pedicels ca. 2 mm. Sepals 5, smaller ones broadly ovate, 2-2.5 mm, larger ones oblong, ca. 3.5 mm, base of abaxial surface and margin villous. Petals 4(5 or 6), narrowly lanceolate, ca. 5.5 mm; scales large, nearly as long as 2/3 of petals, margin densely tomentose. Disk semilunar, thick. Stamens 8, slightly exserted. Fertile schizocarps yellow, subglobose, ca. 2.2 cm in diam. Fl. early summer, fr. late autumn.
This species is used medicinally and for timber.
● Forests; 1200-2600 m. Guizhou, Hubei, Shaanxi, Sichuan, Yunnan.