DistributionRead full entry
Range DescriptionAccording to Izquierdo et al. (2004), P. webbiana is endemic to the Canary Islands of Hierro, La Gomera, Tenerife, Gran Canaria, Fuerteventura and Lanzarote. However, A. Santos Guerra (pers. comm. 2010) considers the only occurrence of P. webbiana to be the plants on La Isleta (Gran Canaria), a complex of small volcanoes close to Las Palmas city, and that occurrences cited from other islands should be treated as P. procumbens (Hornem.) A.J. Scott, Ford-Lloyd & J.T. Williams. The extent of occurrence (EOO) of this population is no more than 8 km² and the area of occupancy (AOO) is no more than 4 km².