Chasmanthe floribunda is a species of flowering plant in the iris family which is known by the common name African flag.

This plant is endemic to Cape Province in South Africa, but it has been introduced to other areas of similar climate, and is considered to be naturalized in California, Algeria, Australia, Argentina, and St.

[1][2][3][4][5] Chasmanthe floribunda is a perennial herbaceous plant sprouting from a corm and producing clumps of long, narrow leaves.

Atop the stem is a spike inflorescence holding 20 to 40 flowers in neat vertical rows.

Chasmanthe emerges from the ground in autumn in the Western Cape, South Africa, after the first winter rains.