Micranthus is a cormous genus in the Iridaceae family with three species originating in the Cape Province of South Africa. This genus has small flowers in a spike that are blue, white, or purple. Growing mainly on sandstone soils, often in damp places, they mostly flower in early summer. This genus is visited by a variety of insects and is attractive to butterflies.

Micranthus alopecuroides grows from 25 to 40 cm high and has sword-shaped leaves and pale to deep blue flowers in two-ranked spikes. It is found on sandstone soils in the southwestern Cape.