Hilgeria
| Hilgeria Förther, Sendtnera 5: 132. 1998. | | TYPE: Hilgeria hypogaea (Urban & Ekman) Förther 1998. (Heliotropium hypogaeum Urban & Ekman 1929.) |
Lithococca
| Lithococca Small ex Rydberg, Fl. Plains N. Amer. 664. 1932. | | TYPE: Lithococca tenella (Torrey) Small ex Rydberg (Heliotropium tenellum Torrey) |
Notonerium
| Notonerium Bentham, in Bentham & Hooker f., Gen. Pl. 2: 698. 1876. | | TYPE: Notonerium gossei Bentham |
Orthostachys
| Orthostachys (R. Brown) Spach, Hist. Nat. Vég. 9: 32. 1840. | BASIONYM: Heliotropium Linnaeus, subg. Orthostachys R. Brown, Prodr. 493. 1810. | TYPE: Heliotropioum foliatum R. Brown 1810. Typified by I. M. Johnston, Contr. Gray Herb. 81: 46. 1928. |
Pentacarya
| Pentacarya de Candolle ex Meisner, Pl. Vasc. Gen. 1: 279; 2: 187. 1840. | | TYPE: Pentacarya heliotropioides de Candolle ex Meisner, nom. illegit. (Lithospermum incanum G. Forster) |
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