Citation: Hartog & Plas, Blumea 20:151 (1972).

Synonymy: W. arrhiza (L.) Horkel ex Wimmer var. australiana Benth., Fl. Aust. 7:162 (1878); W. arrhiza sensu J. Black, Fl. S. Aust. 172 (1943), partly, non (L.) Horkel ex Wimmer.

Common name: None

Description:
Floating on the water surface; thallus emerged face to c. 1 mm long, elliptic in outline, distinctly convex; ventral side laterally compressed; thallus depth to twice the length of the emergent face.

Published illustration: Aston (1973) Aquatic plants of Australia, fig. 100.

Distribution:  S.Aust.: MU, SL, SE.   N.S.W.; Vic.   New Zealand. Conservation status: native Flowering time: No flowering time is available

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: No text

Author: Not yet available