F. Muell., Fragm. Phyt. Aust. 9:166 (1875).
Synonymy: Not Applicable
Common name: Large mudwort.
Semi-aquatic ?perennial with closed-packed radical leaves, flowers and fruits owing to many short, rarely long, stolons; leaves 1.5-16 cm long, spreading when exposed, with the blade floating on water's surface when submerged, elliptic or broadly so, 5-26 x 1.5-10.5 mm, cuneate to rounded at the base, obtuse to rounded at the apex.
Pedicels variable in length, in fruit 0.2-8 mm long; calyx 2-3.2 mm long, without a purple patch below each sinus; corolla white; anthers black or white partly flushed with grey, with white pollen.
Capsules broad-ellipsoid, rarely globular, 2.2-4 x 1.7-3 mm, dark-brown, with erect caducous style 0.3-0.8 mm long; seeds oblong, 0.5-0.75 mm long, dark-brown.
Image source: fig. 583B in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).|
Cunningham et al. (1982) Plants of western New South Wales, p. 598.
In clay or fine silt, on margins of rivers, streams or freshwater swamps, or in ephemeral rock pools.
?W.Aust.; Qld; N.S.W.; Vic. New Zealand.
Flowering time: April — Nov.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Variation from sessile to pedicellate flower occurs within sporadic populations throughout S.Aust.
Not yet available