The following species are of phytogeographic interest: Helichrysopsis septentrionale (Maputaland endemic), four regional endemic genera (Brachychloa, Ephippiocarpa, Helichrysopsis and Inhambanella), Restio zuluensis, an endemic, Wolffiella welwitschii, a recently discovered endemic, the smallest flowering plant in southern Africa and Thalassodendron ciliatum, the only marine flowering plant found on the south African coastline.    From Wordnik.com.  [Greater St Lucia Wetland Park, South Africa] Reference