Breynia disticha (snowbush).
B. disticha is considered as an invasive shrub to small tree in USA (Florida and Hawaii), Guinea, The British Indian Ocean Territory, Niue and Cuba (Oviedo Prieto et al., 2012; Swearingen and Bargeron, 2016; PIER, 2017). The species invades areas close to where cultivated by root suckers (PIER, 2017). In Cuba it is considered as a transformer species, without further details (Oviedo Prieto et al., 2012). It is regarded as an invasive species in Florida-USA by Swearingen and Bargeron (2016), although it is not in the Florida Exotic Pest Plant Council's list of invasive plant species (Florida Exotic Pest Plant Council, 2017). At Dave's Garden (2017) it is considered by the community as an invasive species in southern Florida, having the ability to spread quickly from roots in damp soils. It is not considered as an invasive species for Florida by Gilman (2014). In Hawaii-USA it has escaped from cultivation and is spreading vegetatively around abandoned homesites in Hawaii (PIER, 2017). In Guinea, the green-form of B. disticha is considered as an invasive species along the roadsides, in secondary thickets over many hectares, at the edge of a mangrove and in woodlands (Cheek et al., 2013). As its been found in areas with no evidence of former cultivation, apparently spreading through seeds. It has been collected in fruit at one of the sites. No details about its invasiveness are given for the British Ocean Territory and Niue.