Perennial subshrubs or (not in Victoria) rosetted herbs, glabrous or with branched hairs. Leaves sessile, entire or toothed. Inflorescence a terminal leafy thyrse with flowers in racemes or cymes, or flowers solitary. Flowers strongly zygomorphic; bracteoles present; sepals 5, free, very small; corolla shortly tubular, 2-lipped, often with calli in throat around indusium, blue to violet with a yellow throat, rarely white or pink; corolla-lobes unequal, winged; stamens epigynous, anthers fused in a tube around style; ovary inferior, 1- or 2-celled, ovules 1 per cell, style simple, straight, glabrous, indusium more or less globose, sometimes 2-lipped, stigma with 2 prominent obtuse lobes. Fruit a dry, indehiscent 1-seeded nut, with persistent perianth.
About 66 species, all endemic to Australia.