Citation: W. R. Barker, sp. nov.

Synonymy: Not Applicable

Common name: None

Description:
Aquatic perennial, occasionally with a conspicuous stolon; leaves 3-8 cm long, with the blade floating on the water's surface, obovate, 6-20 x 2-4.5 mm, attenuate at the base, obtuse to rounded at the apex.

Pedicels 10-22 rarely to 4 mm long; calyx 2-3 mm long, red-purple below the sinuses; corolla white; anthers black, with white pollen.

Capsules down-turned into the silt, broad-ellipsoid, 3.2-4.8 x 2.5-3.5 mm, dark-brown, with the style caducous, bent at the base, 0.8-1.2 mm long; seeds narrow-oblong, 0.9-1.1 mm long, dark-brown.

	Habit.
Image source: fig. 583C in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Distribution:  In fine silt in granite rockholes; submerged at time of observation but whether flowering occurs under water or at times between rains when buds are exposed is unknown. S.Aust.: EP. Conservation status: native Flowering time: (Aug.) Sept. — Oct.

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

Biology: No text

Taxonomic notes: Closely allied to L. australis.

Author: Not yet available