Scientific name

Lasia Lour.

Common names




Could be confused with

Cyrtosperma, Lasimorpha, Urospatha

Native distribution


Species commonly cultivated

Lasia spinosa (L.) Thwaites (Asia)

Adventive distribution


Weed status

not weedy


emergent creeping plant

Brief description

Perennial. Creeping, emergent; rhizomes long, up to 4 cm thick. Petiole elongate, spiny, sheathed at base. Leaves in apical rosette; leaf blade large, sagittate to pinnatifid, major veins on abaxial surface spiny, venation palmate to pinnate. Inflorescence a spadix enclosed in twisted spathe, peduncle spiny. Flowers bisexual, completely covering spadix. Berries numerous, fleshy, warty. Dispersal by seed or stem fragments.

Natural habitat

swamps and shallow, still waters

Additional comments

The genus Lasia contains at least two species, with only one cultivated in the pond plant industry. A genus relatively uncommon in the trade and not suitable for aquariums, it is most commonly found as a tropical pond plant in botanical gardens.