
A campaign urging residents to refrain from buying arum lilies from street side vendors seems to be gaining momentum whilst simultaneously spreading inaccurate information.
Members of the public are being cautioned via e-mails to call City Law Enforcement should they spot arum lily vendors who, by selling the flowers, are inadvertently endangering the lives of a tiny ‘arum lily micro frog’, which is said to breed inside the water and dew held in the cup of the lilies.
According to the CapeNature, the City’s Environmental Resource Department and the South African National Biodiversity Institute, this frog does not exist. There are, however, two different species of frog, namely the micro frog (Microbatrachella capensis) and the arum lily frog (Hyperolius horstockii). The micro frog is smaller than a fingernail, while the arum lily frog is somewhat larger, growing to about 40 mm in length. Furthermore, no frog species breeds in the flowers of arum lilies. While the arum lily frog occasionally uses the flowers for shelter, it is not dependant on them. Arum lily frogs breed in wetlands and not in the flowers of the arums. The micro frog is ground-dwelling, breeding in temporary pools, and it does not climb into any flowers.
Arum lily frogs are very pale and hide their bright orange feet and legs under their bodies during the day. In this way, the frog is able to use a white background as camouflage against predators and this background is sometimes the white arum flower. They do not use the pollen of the flowers to camouflage themselves, as has been suggested.
While arum lily frogs are only found in the Western Cape (and a small area of the Eastern Cape), they are not classified as threatened in the 2004 Red Data book. However, it is true that the species is becoming increasingly rare as their habitat is lost to urban development.
While the illegal harvesting of arum lilies will not lead to the extinction of arum lily frogs, the sale of illegally harvested flora at traffic lights is cause for concern. If left unchecked, other illegally harvested plants such as proteas, ericas, and various bulb species may be seen at traffic lights in the future. Care must therefore be taken to buy from legally compliant retailers. All roving vendors and intersection traders selling flowers are illegal. However, traders selling flowers in demarcated trading bays are legal, and regulated by the City. The City encourages the public to report illegal trading on 021 596 1400/1424.
“The ERM Department is always grateful when residents spread its messages because the need for awareness is so great. Unfortunately, this message has become lost in translation, and we hope that the correct information, as it appears above, will spread in the same manner,” said the City’s Biodiversity Co-ordinator, Clifford Dorse.
The ERM Department is currently updating its pamphlets on frogs and lilies, and will distribute them widely in an attempt to ensure that the public receives the correct information.