Possibly referring to River Orontes in Syria.

A single-species genus. For description see O. aquaticum.

1 species from E USA.

Division and seeds.

Rhizomes and boiled seeds are edible.

Aquatic plant with submerged, floating and emerging leaves, spathe bract-like, not reaching the fertile part of the spadix.

Source: Spencer, R. (2005). Araceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.