Cyanothamnus

Herbs or shrubs. Leaves opposite, simple, or imparipinnate or bipinnate (not in Victoria). Inflorescence axillary or rarely terminal on long shoots, cymose or flowers solitary. Flowers bisexual; sepals 4, free; petals 4, free, imbricate, usually pink or white, sometimes blue, tip with small but distinct incurved hook; stamens 8, all fertile, erect, anther connective usually prominent and dark-coloured; disc entire, not swollen; carpels virtually free, lacking sterile apex, styles terminal on ovary. Fruit of 1–4 follicles; follicles not transversely ridged, with rounded apices, seeds released explosively with elastic endocarp; seeds c. elliptic, rugose to minutely verrucose, dull, black or grey or rarely brown, dorsal side sometimes flattened.