目前为止，中国西南野生生物种质资源库共保藏该物种: 种子9份; DNA材料12份; DNA5份;

• 科:猕猴桃科    Actinidiaceae
• 属:水东哥属   Saurauia
• 种:多脉水东哥   Saurauia polyneura

9. Saurauia polyneura C. F. Liang & Y. S. Wang, Fl. Reipubl. Popularis Sin. 49(2): 333. 1984. 多脉水东哥 duo mai shui dong ge Trees 3-6 m tall. Branchlets unguiculate-scaly. Petiole 1.5-3 cm, sparsely subulate-scaly; leaf blade obovate-lanceolate to elliptic, 12-32 × 5-10 cm, membranous to leathery, both surfaces glabrous, except with scalelike hairs on midvein and lateral veins abaxially, lateral veins 22-40 pairs or more, base cuneate to obtuse, margin finely serrate, apex acute to rounded. Inflorescences solitary, axillary, 7-33 cm, with sparsely distributed scales; pedicels 0.8-1.5 cm, with 2 bracteoles below middle; bracteoles narrowly ovate, ca. 2 mm. Flowers pink to white, 6-10 mm in diam. Sepals elliptic to broadly elliptic, 4-5 mm, abaxially glabrous to very sparsely tomentose. Petals oblong, 5-6 mm, connate at base. Stamens 50-64. Ovary subglobose, 6-8 mm in diam. Fl. Jul-Sep, fr. Sep-Nov.● Forests, valleys; 1200-3200 m. SE Xizang, NW and W Yunnan.【引自：Flora of China】

小乔木，高3-4米；小枝被爪甲状鳞片。叶膜质或薄革质，狭倒卵状披针形或狭矩圆形披针形，长16-32厘米，宽5-8.5厘米，顶端锐尖，基部楔形，稀钝，叶缘具细锯齿，侧脉35-40对或更多，两面无毛，仅叶背中、侧脉疏生爪甲状鳞片；叶柄长2-3厘米，疏生鳞片。花序圆锥式，单生于叶腋，长20-33厘米，无毛，有鳞片，花柄长8-15毫米，中下部具近对生的小苞片2枚；小苞片狭卵形，长2毫米；花粉红色，径约1厘米；萼片椭圆形或阔椭圆形，长5毫米，背面无毛或有极星散分布的微绒毛，边缘稀有纤毛；花瓣矩圆形，长5-6毫米，下部合生；雄蕊50枚；子房近球形，绿色或黄色，直径6-8毫米。花果期7-11月。 【引自：中国植物志】