Isotoma Lindl.

c. 15 species in Aust. (1 native, 14 endemic); all states and territories

Glabrous to minutely pubescent herbs. Leaves alternate. Flowers in racemes or solitary in the leaf axils, sessile or on long peduncles. Corolla tubular, entire or ± notched anteriorly, with almost equal lobes. Stamens adnate to the corolla tube; anterior anthers each bearing a long bristle which may cohere together and appear as one. Ovary 2-locular. Fruit an indehiscent or dehiscent capsule.