sentences:  A number of xerophilous plants grow in the brackish subsoil of Maio, Sal, and Boa Vista.There are 664 listed plant species, which include two threatened species.Over 80 vascular plant taxa are reported to be endemic to Cape Verde; these include "Tornabenea", "Aeonium gorgoneum", "Campanula bravensis" (bellflower), "Nauplius smithii", "Artemisia gorgonum" (sagebrush), "Sideroxylon marginata", "Lotus jacobaeus", "Lavandula rotundifolia", "Sarcostemma daltonii", "Euphorbia tuckeyana", "Polycarpaea gayi" and "Erysimum caboverdeanum" (wallflower).