Other names: Formerly Gynandriris setifolia.
Family: Iridaceae (Iris family).
Native of South Africa.
Occurrence: Uncommon weed of roadsides and farmland.
Similar species: Thread Iris can be distinguished from other members of the iris family by the colour of the flowers and the long, threadlike leaf.
Photos 1: Thread iris. Part of the long, thread-like leaf can be seen in the top right hand corner.
2: Specimen from Swan Lagoon. The leaf is on the left. 3: Thread Iris. Cape Jervis.