Luffa seeds are bitter to eat. Luffa seed, Chinese medicine name. It is the seed of cucurbitaceae plants Luffacylindrica(L)Roem and Luffaacutangula(L)Roxb, which are spread all over the country.

Luffa is an annual climbing vine of Cucurbitaceae. Stems and branches are rough, ribbed and puberulent. Tendrils slightly stout, pubescent, usually 2-4-pronged. Petiole rough, subglabrous; Leaf blade triangular or suborbicular, usually palmately 5-7-lobed, lobes triangular, dark green above, rough, warty, light green below, pubescent, palmately veined, with white pubescence.