Greek chasme – gaping, anthos – flower, as the perianth gapes like an open mouth.
Large perennial herbs, dormant in summer. Corms flattened; tunics fibrous. Leaves basal, swordshaped, with midvein. Stem erect, few-branched. Flowers sessile, 2-lipped, dorsal lobe far the longest. Perianth tube far exceeding spathe, abruptly widened with 1-3 pouches. Stamens arched dorsally, one longer than others. Seeds round, shiny, orange.
3 species in S Africa.
Clumps of large grass-green leaves; 2-lipped tubular flowers.
Offsets or seed.
de Vos (1985), Duncan (2001).
Source: (2005). Iridaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.