Halgania species are spreading to erect shrubs or subshrubs up to 1.2 m high.

The 5-parted corolla is blue to violet, rarely white and flat or widely cup-shaped, similar to Solanum-flowers.

Dusty pollen is released through a pore made by beak-like appendage of the anthers through buzz pollination.

[3] The H. andromedifolia-clade (H. andromedifolia and H. rigida) occurs exclusively in Western Australia and the sepals are often conspicuously inqually sized.

Its members have neither dolabriform hairs, nor inqually sized sepals, and always long anther appendages.

They grow in well-drained soils and sand in dry climates, except to the hyper-arid regions of the Nullarbor Plain.