Ammannia teres
| Ammannia teres Rafinesque, Autik. Bot. 39. 1840. | | TYPE: DELAWARE: Sussex Co.: Without data, Nuttall s.n. (lectotype: P). Lectotypified by S. A. Graham, J. Arnold Arbor. 66: 407. 1985. |
Ammannia coccinea subsp. longifolia
| Ammannia coccinea Rottbøll, subsp. longifolia (Koehne) Koehne, Bot. Jahrb. Syst. 1: 250. 1880. | BASIONYM: Ammannia sanguinolenta Swartz, subsp. longifolia Koehne 1877. | |
Ammannia coccinea subsp. purpurea
| Ammannia coccinea Rottboell, subsp. purpurea (Koehne) Koehne, Bot. Jahrb. Syst. 1: 250. 1880. | BASIONYM: Ammannia sanguinolenta Swartz 1788. | |
Ammannia latifolia var. octandra
| Ammannia latifolia Linnaeus, var. octandra A. Gray, in Engelmann et al., Pl. Lindheim. 188. 1850. | BASIONYM: Ammannia texana Scheele 1848. | |
Ammannia pedunculata
| Ammannia pedunculata Rusby, Descr. S. Amer. Pl. 68. 1920. | | TYPE: COLOMBIA: Magdalena: Cienaga, 10 Sep 1898, Smith 548 (holotype: NY; isotypes: CM, F, GH, K, P). |
Ammannia sagittata var. angustifolia
| Ammannia sagittata de Candolle, var. angustifolia A. Richard, in Sagra, Hist. Fis. Cuba, Bot. 10: 252. 1845. | | TYPE: CUBA: Near San Diego, s.d., Sagra s.n. (holotype: P). |
Ammannia sanguinolenta
| Ammannia sanguinolenta Swartz, Prodr. 33. 1788. | | TYPE: Without data, Swartz s.n. (holotype: S). |
Ammannia sanguinolenta subsp. longifolia
| Ammannia sanguinolenta Swartz, subsp. longifolia Koehne, in Martius, Fl. Bras. 13(2): 208. 1877. | | |
Ammannia sanguinolenta subsp. purpurea
| Ammannia sanguinolenta Swartz, subsp. purpurea Koehne, in Martius, Fl. Bras. 13(2): 207. 1877, nom. inadmiss. | BASIONYM: Ammannia sanguinolenta Swartz 1788. | |
Ammannia stylosa
| Ammannia stylosa Fischer & C. A. Meyer, Index Sem. Hort. Petrop. 7: 41. 1841. | | TYPE: LOUISIANA: Orleans Par.: New Orleans, s.d., Wiedemann s.n. (holotype: LE). |
Ammannia texana
| Ammannia texana Scheele, Linnaea 21: 588. 1848. | | TYPE: TEXAS: Comal Co.: Near New Braunfels, s.d., Lindheimer s.n. (holotype: ?). |