As for the species but seeds strongly tuberculate with the tubercles cylindrical, slightly expanded and minutely papillate at the apex. Flowers and fruits mostly Nov.–Apr.
MuM, Wim, GleP, Brid, VVP, GGr, DunT. Also SA. Typically on damp sandy or peaty soil or in shallow fresh water in semi-shaded, mostly sheltered sites of forest depressions, bogs, swamps and creek edges, sometimes in water to 45 cm deep.
Source:
Aston, H.I. (1999). Menyanthaceae. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 4, Cornaceae to Asteraceae, pp. 380–385. Inkata Press, Melbourne.
