白木通Akebia trifoliata (Thunb.) Koidz. subsp. australis (Diels) T.Shimizu

别名：三叶木通;八月瓜藤;八月栌;八月瓜;

科名：木通科 Lardizabalaceae

属名：木通属 Akebia

《中国植物志》第29卷009页
  3b．白木通（亚种）
  Akebia trifoliata (Thunb.) Koidz. subsp. australis (Diels) T. Shimizu in Quart. Journ. Taiwan Mus. 14: 201. 1961; H. N. Qin Cathaya 8-9: 73. 1997. ——Akebia lobata Decne. var. australis Diels in Bot. Jahrb. 29: 344. 1901.——A. chaffanjoni Levl. in Bull. Soc. Agrie. Sarthe 39: 316. 1904.——A. lobata Decne. var. chaffanjoni (Levl.) Levl. Fl. Kouy-Tcheok 44. 1914.——A. trifoliata (Thunb.) Koidz. var. australis (Diels) Rehd. in Journ. Arn. Arb. 10: 189. 1929. ——A. chingshuiensis T. Shimizu in Quart. Journ. Taiwan Mus. 14: 199. Fig. 1 B, 2. 1961. ——A. trifoliata (Thunb.) Koidz. var. integrifolia T. Shimizu in Quart. Journ. Taiwan Mus. 14: 201. 1961.
  小叶革质，卵状长圆形或卵形，长4-7厘米，宽1.5-3（5）厘米，先端狭圆，顶微凹入而具小凸尖，基部圆、阔楔形、截平或心形，边通常全缘；有时略具少数不规则的浅缺刻。总状花序长7-9厘米，腋生或生于短枝上。雄花：萼片长2-3毫米，紫色；雄蕊6，离生，长约2.5毫米，红色或紫红色，干后褐色或淡褐色。雌花：直径约2厘米；萼片长9-12毫米，宽7-10毫米，暗紫色；心皮5-7，紫色。果长圆形，长6-8厘米，直径3-5厘米，熟时黄褐色；种子卵形，黑褐色。花期4-5月，果期6-9月。
  产于长江流域各省区，向北分布至河南、山西和陕西。生于海拔300-2100米的山坡灌丛或沟谷疏林中。
  果可食和药用；茎、根用途同三叶木通。

《Flora of China》 Vol. 6 (2001)
Akebia trifoliata subsp. australis  (Diels) T. Shimizu
白木通   bai mu tong
Akebia lobata Decaisne var. australis Diels, Bot. Jahrb. Syst. 29: 344. 1901; A. chaffanjonii H. Léveillé; A. trifoliata var. australis (Diels) Rehder; A. trifoliata subsp. australis var. honanensis T. Shimizu; A. trifoliata var. integrifolia T. Shimizu.
Leaflets 3, ovate-oblong to ovate, 4--7 × 1.5--3(--5) cm, leathery, base rounded, broadly cuneate, truncate, or cordate, margin usually entire, very rarely irregularly sinuate, apex narrowly rounded, slightly emarginate, and cuspidate. Racemes axillary on short branches. Male flowers: sepals 3, purple, broadly elliptic to elliptic, 2--3 mm. Stamens red to purplish red when fresh, brown to pale brown when dry, ca. 2.5 mm. Female flowers: sepals dark purple, 9--12 × 7--10 mm. Carpels 5--7, purple. Fruit yellowish brown at maturity, 6--8 × 3--5 cm. Seeds blackish brown, ovoid. Fl. Apr--May, fr. Jun--Sep.
* Open forest along valleys, among shrubs on mountain slopes; 300--2100 m. Anhui, Fujian, Guangdong, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, S Shaanxi, S Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang.