雷波花椒 lei bo hua jiao

Zanthoxylum calcicola C. C. Huang var. macrocarpum C. C. Huang.

Shrubs to 2 m tall, erect. Branchlets and leaf rachises with prickles. Leaves 17-31-foliolate; petiolules 1-3 mm, puberulent; leaflet blades subopposite to alternate, broadly ovate to obovate with rounded or cuspidate apex, or ovate-obdeltoid with abrupt apex, 2-4 × 1.5-2.5 cm, thickly papery, oil glands inconspicuous, midvein impressed or apically plane, basally puberulent, margin apically crenulate. Inflorescences axillary, subracemosely cymose, 4-10 cm. Fruit pedicel 1-3 mm; follicles dark blackish brown when dry, 0.5-1.5 cm in diam., rugulose, oil glands inconspicuous, apex beaked. Seeds ca. 5 mm in diam. Fr. Jul.

● Thickets on dry hill slopes, river valleys; 400-1500 m. SW Sichuan.