| Geissorhiza radians | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Iridaceae |
| Genus: | Geissorhiza |
| Species: | G. radians |
| Binomial name | |
| Geissorhiza radians Goldblatt | |
| Synonyms | |
Geissorhiza rochensis var. rochensis | |
Geissorhiza radians or winecup flower is a highly threatened species from the Iris family with fewer than 10 remaining sub-populations growing in south-western Cape Town, South Africa. [1] The deep purple flowers with large, red centres grow in dense colonies, which makes for a spectacular flower display from mid-September, particularly around the town of Darling. Its seasonally wet lowlands habitat is, however, becoming increasingly threatened, with more than 80% of its original habitat now permanently transformed into agriculture or urban sprawl and the remaining populations threatened by encroaching invasive alien vegetation and fertilizer runoff. The dark-centred flowers aim to attract specific pollinators from the horsefly family (Tabanidae), but the specific interactions still require additional investigation. Each plant has 1 to 6 flowers. It is also found in smaller patches through to Gordon's Bay. The plants nearly always occur in seasonally moist wetlands which become dry in the summer months. [2]
