Lithospermum hispidum Heliotropium affghanum Heliotropium balansae Heliotropium moroccanum Heliotropium sarothroclados Heliotropium turcomanicum Heliophytum kotschyi Heliotropium assyricum Heliotropium eriocarpum
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024