(Salisb.) N. E. Br., Iridaceae
Present on Pacific Islands? no
Primarily a threat at high elevations? no
Other Latin names: Antholyza floribunda Salisb.
Description: "A perennial herb with a tuber and corms up to 6 cm in diameter, and annual leaves and flowering stems. Leaves are 25-80 cm long and 2-4 cm wide, and have a prominent midvein. Flower-bearing stems are glabrous, few-branched and up to 1 m tall. The tubular and asymmetric flowers are orange-red to yellow, 6-8 cm long, and borne in spikes of 15-15 cm length. Fruits are depressed globose capsules of 10-15 mm diameter, releasing smooth and orange seeds. Two varieties have become naturalized in Australia: var. floribunda with orange flowers and var. duckittii with yellow flowers" (Weber, 2003; p. 101).
Habitat/ecology: "Grass- and heathland, sclerophyll forests, riparian habitats. The species grows best on well-drained calcareous soils. The plant builds up large and dense populations that eliminate native vegetation by competing for space, water and nutrients" (Weber, 2003; p. 101).
Propagation: "The flowers are attractive to nectar-feeding birds, and the plant produces copious amounts of seed. Vegetative spread is possible due to the formation of daughter cormlets at the end of the growing season" (Weber, 2003; p. 101).
Native range: South Africa (Northern and Western Cape) (GRIN).