Lilaeopsis carolinensis

Lilaeopsis carolinensis is a grass-like member of the carrot family whose habitats are wet to marshy and often brackish.² The upright leaves grow singly or a few together from the rooting nodes of a creeping, branched rhizome.² Their tip is blunt and the upper part flattened and narrowly spatulate, whereas the base is hollow and almost circular in cross-section.²³

Submersed it closely resembles L. brasiliensis, because underwater its leaves stay much shorter than on land and grow hardly taller than those of that species.²³ It can be identified more reliably by its flowers and fruits, which often develop in marsh culture, than by the leaf length, which is about double in emersed plants.² In the aquarium it grows slowly and forms a grass-like lawn in the foreground or in nano aquariums; it is propagated by runners and division. It is less widespread in the trade than L. brasiliensis.³