Citation: H. Aston, Muelleria 2:53 (1969).

Synonymy: V. parnassiifolia sensu J. Black, Fl. S. Aust. 459 (1926), non (Labill.)R. Br.

Common name: Lax marsh-flower.

Description:
Slender tufted perennial or annual to 105 cm high but usually much less; stolons absent; petioles of the basal leaves 2.5-43 cm long; leaf blades aerial, erect, sometimes floating on plants in water but then not markedly dorsiventral, ovate to broad-ovate, entire, usually slightly to moderately cordate, 1-8 rarely 12 cm long.

Inflorescence a slender lax open panicle occupying much of the length of the flowering stem; pedicels of the mature capsules 5-40 rarely to 62 mm long, recurved; calyx 6-9 sometimes only 3 mm long; corolla 11-31 (average 22) mm diam., yellow; corolla lobes usually 5 sometimes 4 or 6, with broad entire to crenulate wings, not keeled; stigmas 2, fleshy and papillate.

Capsule 5-11 mm long, usually longer than the calyx; seeds ellipsoid to subglobular, somewhat laterally compressed, many, 0.8-1.6 but usually 1-1.4 mm long, pale-fawn to light-brown, smooth or tuberculate, without a caruncle.

Published illustration: H. I. Aston (1973) Aquatic plants of Australia, fig. 49.

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