《中国植物志》|| 芸香亚科 RUTACEAE ||花椒亚属 Subgen. Zanthoxylum ||墨脱花椒 Zanthoxylum motuoense Huang

36.墨脱花椒
Zanthoxylum motuoense Huang in Acta Phytotax. Sin. 16: 83, Pl. 1. 1978.
落叶小乔木，高达15米；枝粗壮，刺常生于叶痕的旁侧，长约1毫米，基部增厚呈垫状。单小叶或叶有小叶3或5片；小叶阔倒卵形或阔椭圆形，长3-6厘米，宽2-4厘米，中央一片最大，长达9厘米，宽6厘米，两端常近于圆，很少急尖或楔形，叶缘有细裂齿，除齿缝处有油点外，其余油点不显，两面被短柔毛，叶背的毛较密且长；叶轴无翼叶，无刺，密被毛。花序约与新叶同时抽出。果序圆锥状，长4-8厘米，果梗有短毛；分果瓣椭圆形，径约4.5毫米，果皮上的油点大且微凸起；种子径约4毫米。果期9-10月。
产西藏墨脱（模式标本产地）。见于海拔们1100米山地杂木林中。

《Flora of China》|| Rutaceae || Zanthoxylum ||墨脱花椒 Zanthoxylum motuoense

36. Zanthoxylum motuoense C. C. Huang, Acta Phytotax. Sin. 16(2): 83. 1978.

墨脱花椒 mo tuo hua jiao

Trees to 15 m tall, deciduous. Branchlets with prickles near leaf scars. Leaves 3- or 5-foliolate; rachis not winged, unarmed, with trichomes; leaflet blades broadly obovate to broadly elliptic, 3-6 × 2-4 cm but terminal one to 9 × 6 cm, both surfaces pubescent, oil glands inconspicuous, base subrounded to cuneate, margin crenulate, apex subrounded or rarely acuminate. Infructescences paniculate, 4-8 cm. Fruit pedicel with short trichomes; follicles elliptic, ca. 4.5 mm in diam., with large protruding oil glands. Seeds ca. 4 mm in diam. Fr. Sep-Oct.

● Upland thickets; ca. 1100 m. SE Xizang (Mêdog).