Stryphnodendron rotundifolium Mart. var. rotundifolium.

de Lima, Alexandre G., de Paula-Souza, Juliana, Ringelberg, Jens J., Simon, Marcelo F., de Queiroz, Luciano P., Borges, Leonardo M., de F. Mansano, Vidal, Souza, Vinicius C. & Scalon, Viviane R., 2022, New segregates from the Neotropical genus Stryphnodendron (Leguminosae, Caesalpinioideae, mimosoid clade), PhytoKeys 205, pp. 203-237 : 203

4.26.1 Stryphnodendron rotundifolium Mart. var. rotundifolium.

Stryphnodendron discolor Benth., J. Bot. (Hooker) 4(31): 342. 1841. Type. Brazil. Piauí, "Serra de Araripe, near Caldas, Prov. Piauhy", 1838-1841, Gardner 1945 (lectotype: BM 000884631!, designated by Scalon et al. 2022; isolectotypes: E!, F!, G!, K!, NY!, OXF!, P!, W!).

Stryphnodendron obovatum Benth., Trans. Linn. Soc. London 30(3): 374. 1875. Type. Brazil. "Habitat inter Natividade et Porto Imperial, provinciae Goyaz", May 1865, Burchell 8343 (lectotype: K 000504730!, designated by Scalon et al. 2022; isolectotypes: F!, P!).

Stryphnodendron rotundifolium f. retusa Chodat & Hassl., Bull. Herb. Boissier, sér. 2, 4(6): 559. 1904. Type. Paraguay. "In campis cerrados in regione cursus superioris fluminis Apa", Nov 1901-1902, Hassler 7829 (lectotype: G 00400140!, designated by Scalon et al. 2022; isolectotypes: A, F!, G 00400103!, G 00400106!, G 00400108!, K!, MPU, NY!, P!, W!).