20. 聚花白鹤藤 图版29: 1
名称文献：Argyreia osyrensis (Roth) Choisy in DC. Prodr. 9: 334. 1845; Merr. et Chun in Sunyatsenia 2 (3-4): 312. 1935, syn. p. p. excl.; Masamune, Fl. Kainant. 271. 1934; v. Ooststr. in Blumea 7: 177. 1952, et in Fl. Males. ser. 1, 4(4): 508. 1953; 吴征镒、李锡文, 云南热带亚热带植物区系研究报告1: 136. 1965;海南植物志3: 495. 1974. ——Ipomoea osyrensis Roth Nov. Pl. Sp. 117. 1821.——Lettsomia aggregate Roxb. var. osyrensis (Roth) C. B. Clarke in Hook. f. Fl. Brit. Ind. 4: 192. 1883. ——Argyreia aggregata(Roxb. ) Choisy var. osyrensis (Roth) Gagn. et Courch. in Lecte. Fl. Gen. Indo-Chine 4: 280. 1915.