Species commonly cultivated
Lasia spinosa (L.) Thwaites (Asia)
emergent creeping plant
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.
swamps and shallow, still waters
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.