HELIOTROPIUM undulatum Vahl. [family BORAGINACEAE], Symb. i. 13. —DC. Prodr. ix. 536; C. B. Clarke in Hook. f. Fl. Brit. Ind. iv. 150; Schmidt, Beitr. Fl. Cap. Verd. Ins. 225; Hiern in Cat. Afr. Pl. Welw. i. 718.
HELIOTROPIUM crispum Desf. [family BORAGINACEAE], Fl. Atlant. i. 151, t. 41.
HELIOTROPIUM persicum Lam. [family BORAGINACEAE], Encycl. iii. 94; DC. l.c. 537; Boiss. Fl. Orient. iv. 147.
HELIOTROPIUM ramosissimum Sieber ex DC. [family BORAGINACEAE], l.c.
HELIOTROPIUM eriocarpum Delile ex Lehm. [family BORAGINACEAE], Asper. 55.
HELIOTROPIUM paradoxum Vatke [family BORAGINACEAE], in Oest. Bot. Zeitschr. 1875, 167.
HELIOTROPIUM nubicum Bunge [family BORAGINACEAE], in Bull. Soc. Nat. Mosc. xlii. i. 330 (1869).
HELIOTROPIUM cressoides Franch. [family BORAGINACEAE], Sert. Somal. 46.
Lithospermum hispidum Forsk. [family BORAGINACEAE], Fl. Ægypt.-Arab. 38.