Ornamental, densely leafy evergreen shrub or small tree up to 4m high. Leaves are bright green above, paler below, with sharply toothed margins. Bright yellow, showy, trumpet-shaped flowers in terminal sprays from October to May. Brown, shiny fruit capsules 12-20cm long that split open to release papery winged seeds.

A spreading shrub or untidy scrambler growing up to 2m or higher. Stems usually covered with short, stiff hairs and recurved thorns. Dark green, rough, hairy leaves which are paler below and smell strongly when crushed. Pink, red, crimson, orange, yellow or white flowers in compact, flat-topped heads, often with several colours in one head, appear from September to April. Glossy green fruits which...

A perennial aquatic plant, free-floating or anchored in shallow water, usually 10-20cm high but up to 1m when growing in dense mats. It has dark shiny green leaves in rosettes with distinctive, swollen, bladder-like petioles. Pale violet or blue flowers in 8-10 flowered spikes appear from November to April. This aquatic plant invades dams and slow-moving rivers.