合萌（学名：Aeschynomene indica）为豆科合萌属下的一个种。

Aeschynomene indica is a species of flowering plant in the legume family. Common names include Indian jointvetch, kat sola, budda pea, curly indigo, hard sola, northern jointvetch, indische Schampflanze (German), angiquinho, maricazinho, papquinha, pinheirinho (Brazilian Portuguese), he meng (Chinese), kusanemu (Japanese), and ikin sihk (Pohnpeian).