Citation: R. Br., Prod. Fl. Nov. Holl 439 (1810).

Synonymy: Not Applicable

Common name: Swamp mazus.

Description:
Low perennial forming leafy rosettes connected by horizontal rhizomes; leaves radical, ascending, obovate-spathulate, the petiole 0.3-3 cm long, the blade 0.8-5.5 x 0.25-1.8 cm, serrate-dentate to undulate, sometimes almost entire, acute to rounded, sometimes shortly acuminate, discolorous, shortly eglandular-hairy on the upper surface, sometimes also below.

Flowers 1-4 rarely 6 or more, on scapes terminal on short shoots, the rhachis 1.5-8 rarely 14 cm long, with the bracts at the base of the pedicels absent or deciduous early; bracteoles to 4 mm long, entire; pedicels 0.5-4 cm long; calyx campanulate, 2.5-5.5 mm long, obscurely 5-angled, glabrous or sparsely eglandular-hairy, teeth 1-2.5 mm long, slightly shorter or longer than the tube; corolla 7.5-12 mm long along the upper side, pale-blue to purple, the tube at least sometimes white, the palate yellow or ?white.

capsule ellipsoid, acuminate, enclosed by the persistent calyx.

Image source: fig. 584 in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Rotherham et al. (1975) Flowers and plants of New South Wales and southern Queensland, Fig. 556.

Distribution:  On margins of swamps or in boggy ground, sometimes forming swards. S.Aust.: SL, SE.   Qld; N.S.W.; Vic.; Tas. Conservation status: native Flowering time: Oct. — March.

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