It is also known as European water chestnut, buffalo nut, bat nut, devil pod, ling nut, lin kok, ling kio nut, or singhara. The fruit is a four-horned nut-like structure about 3 cm (1.2 in.) wide that develops underwater. Fruits ripen in about a month and can remain viable for up to about twelve years. Each seed can give rise to ten to fifteen rosettes, and each rosette may produce as many as twenty seeds.