Crotalaria laburnifolia is an erect, shrubby herb that can reach a height between 0.6-2m tall. It is mostly a hairless plant, the flowers are borne in spikes of loose terminal inflorescence of bright yellow flowers of about 40mm large. The spikes are about 150-500mm large. The yellow flowers sometimes are marked with reddish brown streaks outside and is bell shaped.
Crotalaria laburnifolia is a hardy garden plant that attracts many butterflies and pollinating insects to the garden. It is a lovely specimen for a mixed shrubbery.