Blyxa is a genus of an aquatic plant of the family Hydrocharitaceae described as a genus in 1806. It is native to tropical and subtropical regions of Africa, Asia, Madagascar, and Australia. Species 1. \n* Blyxa aubertii A. Rich. - China, Japan, Korea, Indian Subcontinent, SE Asia, New Guinea, N Australia, Caroline Islands, Madagascar, Tanzania, Mozambique 2. \n* Blyxa echinosperma (C.B.Clarke) Hook.f. - China, Japan, Korea, Indian Subcontinent, SE Asia, New Guinea, N Australia 3. \n* Blyxa hexandra C.D.K.Cook & Luond - central Africa 4. \n* Blyxa japonica (Miq.) Maxim. ex Asch. & Gürke - China, Japan, Korea, Indian Subcontinent, SE Asia, New Guinea 5. \n* Blyxa javanica Hassk. - Java 6. \n* Blyxa leiosperma Koidz. - Japan, Anhui, Fujian, Guangdong, Hainan, Jiangxi, Zhejiang 7. \n*