Luffa cylindrica is a large climber with a stout stem, seed 1â2 cm long and 0.8 cm wide. Leaves are large, 10â20 cm long and 9â21 cm wide. The plant contains various phytochemical, such as alkaloid, steroid, triterpinoid, flavonoid and glycoside. The fruit, eaten as a vegetable and is good for health.