Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Native to Sri Lanka in southeastern Asia, where it usually occurs in seasonal ponds, becoming dormant in the dry season. Found naturally in still and running waters.It is a submerged aquatic plant with a round rhizome 2–3 cm in diameter. The leaves are light green to olive green-brown, 8 - 14 inches (20-35cm) long and 2.5 inches (6cm) broad, with a wavy margin and a petiole up to 18 inches (45cm) long (wild plants tend to have longer and narrower leaves than the cultivated varieties. No floating leaves are formed.

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