Studies on Heliotropium in Saudi Arabia PDF

Keywords

taxa, Saudi Arabia, Heliotropium

Abstract

Sixteen taxa of Heliotropium (Boraginaceae) in Saudi Arabia are described. They are: H. aegyptiacum Lehm., H. arbainese Fres., two subspecies of H. bacciferum Forssk., H. bottae Defl., H. crispum Desf., H. curassavicum L., H. digynum (Forssk.) Asch. ex C. Christ., H. europaeum L., H. longiflorum (Hochst & Steud ex. DC.) Jaub. & Spach, H. ovalifolium Forssk., H. pterocarpum (Hochst & Steud ex. DC.) Jaub. & Spach, H. strigosum Willd., H. subulatum (DC.) Vatke, H. sp. A and H. sp. B. Four other species which may be present in Saudi Arabia are discussed