= Amylocarpus acanthocnemis (Mart.) Barb.Rodr.; Contr. Jard. Bot. Rio de Janeiro 3: 71 (1902)
= Amylocarpus angustifolius Huber; Bol. Mus. Goeldi Hist. Nat. Ethnogr. 7: 285 (1913)
= Amylocarpus arenarius (Barb.Rodr.) Barb.Rodr.; Contr. Jard. Bot. Rio de Janeiro 3: 72 (1902)
= Amylocarpus inermis (Trail ex Barb.Rodr.) Barb.Rodr.; Sert. Palm. Brasil. 2: t. 45a (1903)
= Amylocarpus luetzelburgii (Burret) Burret; Notizbl. Bot. Gart. Berlin-Dahlem 10: 1023 (1930)
= Amylocarpus microspathus (Barb.Rodr.) Barb.Rodr.; Contr. Jard. Bot. Rio de Janeiro 3: 72 (1902)
= Amylocarpus obovatus Burret; Notizbl. Bot. Gart. Berlin-Dahlem 11: 17 (1930)
= Amylocarpus simplicifrons (Mart.) Barb.Rodr.; Contr. Jard. Bot. Rio de Janeiro 3: 71 (1902)
= Amylocarpus tenuissimus (Barb.Rodr.) Barb.Rodr.; Contr. Jard. Bot. Rio de Janeiro 3: 72 (1902), nomen
= Amylocarpus xanthocarpus (Barb.Rodr.) Barb.Rodr.; Contr. Jard. Bot. Rio de Janeiro 3: 71 (1902)
= Bactris acanthocnemis Mart.; Voy. Amér. Mér. 7(3): 67 (1844)
= Bactris amoena Burret; Repert. Spec. Nov. Regni Veg. 34: 180 (1933)
= Bactris arenaria Barb.Rodr.; Enum. Palm. Nov. 29 (1875)
= Bactris brevifolia Spruce; J. Linn. Soc., Bot. 11: 144 (1869)
= Bactris carolensis Spruce; J. Linn. Soc., Bot. 11: 145 (1869)
= Bactris cuspidata var. tenuis (Wallace) Drude; Fl. Bras. [Martius] 3(2): 329 (1881)
= Bactris dakamana (L.H.Bailey) Glassman; Rhodora 65: 259 (1963)
= Bactris essequiboensis (L.H.Bailey) Glassman; Rhodora 65: 259 (1963)
= Bactris gleasonii (L.H.Bailey) Glassman; Rhodora 65: 259 (1963)
= Bactris gracilis Barb.Rodr.; Enum. Palm. Nov. 27 (1875)
= Bactris huberiana Burret; Repert. Spec. Nov. Regni Veg. 34: 174 (1933)
= Bactris inermis Trail ex Barb.Rodr.; Enum. Palm. Nov. 30 (1875)
= Bactris inermis var. tenuissima Barb.Rodr.; Enum. Palm. Nov. 30 (1875)
= Bactris juruensis var. lissospatha Trail; J. Bot. 15: 40 (1877)
= Bactris kuhlmannii Burret; Notizbl. Bot. Gart. Berlin-Dahlem 14: 262 (1938)
= Bactris kuhlmannii var. aculeata Burret; Notizbl. Bot. Gart. Berlin-Dahlem 14: 263 (1928)
= Bactris luetzelburgii Burret; Notizbl. Bot. Gart. Berlin-Dahlem 10: 1022 (1930)
= Bactris luetzelburgii var. anacantha Burdet; Repert. Spec. Nov. Regni Veg. 34: 174 (1933)
= Bactris maguirei (L.H.Bailey) Steyerm.; Fieldiana, Bot. 28: 80 (1951)
= Bactris microspatha Barb.Rodr.; Enum. Palm. Nov. 26 (1875)
= Bactris mitis subsp. inermis Trail; J. Bot. 14: 355 (1876)
= Bactris mitis subsp. tenuis (Wallace) Trail; J. Bot. 15: 3 (1877)
= Bactris mitis subsp. uaupensis (Spruce) Trail; J. Bot. 15: 3 (1877)
= Bactris naevia Poepp. ex Burret; Repert. Spec. Nov. Regni Veg. 34: 179 (1933)
= Bactris negrensis Spruce; J. Linn. Soc., Bot. 11: 145 (1869)
= Bactris negrensis var. carolensis (Spruce) Burret; Repert. Spec. Nov. Regni Veg. 34: 177 (1933)
= Bactris negrensis var. minor Spruce; J. Linn. Soc., Bot. 11: 145 (1869)
= Bactris obovata Burret; Notizbl. Bot. Gart. Berlin-Dahlem 11: 16 (1930)
= Bactris paucisecta Burret; Repert. Spec. Nov. Regni Veg. 34: 171 (1933)
= Bactris pulchra var. inermis Dammer; Verh. Bot. Vereins Prov. Brandenburg 48: 128 (1906 publ. 1907)
= Bactris simplex Burret; Repert. Spec. Nov. Regni Veg. 34: 179 (1933)
= Bactris simplicifrons subvar. minor Trail; J. Bot. 15: 1 (1877)
= Bactris simplicifrons var. acanthocnemis (Mart.) Drude; Fl. Bras. [Martius] 3(2): 321 (1881)
= Bactris simplicifrons var. brevifolia (Spruce) Trail; J. Bot. 15: 1 (1877)
= Bactris simplicifrons var. carolensis (Spruce) Trail; J. Bot. 15: 1 (1877)
= Bactris simplicifrons var. negrensis (Spruce) Trail; J. Bot. 15: 1 (1877)
= Bactris simplicifrons var. subpinnata Trail; J. Bot. 14: 355 (1876)
= Bactris sororopanae Steyerm.; Fieldiana, Bot. 28(1): 78 (1951)
= Bactris stahelii (L.H.Bailey) Glassman; Rhodora 65: 259 (1963)
= Bactris tenuis var. inermis (Trail ex Barb.Rodr.) Burret; Repert. Spec. Nov. Regni Veg. 34: 172 (1933)
= Bactris tenuis Wallace; Palm Trees Amazon 87, t. xxxiii. (1853)
= Bactris tenuissima (Barb.Rodr.) Barb.Rodr.; Sert. Palm. Brasil. 3: t. 10d (1903)
= Bactris trinitensis (L.H.Bailey) Glassman; Rhodora 65: 259 (1963)
= Bactris uaupensis Spruce; J. Linn. Soc., Bot. 11: 145 (1869)
= Bactris ulei Burret; Repert. Spec. Nov. Regni Veg. 34: 177 (1933)
= Bactris xanthocarpa Barb.Rodr.; Enum. Palm. Nov. (1879) App. 30
= Yuyba dakamana L.H.Bailey; Bull. Torrey Bot. Club 75: 108 (1948) ex Maguire
= Yuyba essequiboensis L.H.Bailey; Bull. Torrey Bot. Club 75: 108 (1948) ex Maguire
= Yuyba gleasonii L.H.Bailey; Gentes Herbarum 8: 174 (1949)
= Yuyba maguirei L.H.Bailey; Bull. Torrey Bot. Club 75: 106 (1948) ex Maguire
= Yuyba simplicifrons (Mart.) L.H.Bailey; Gentes Herbarum 7: 416 (1947)
= Yuyba simplicifrons var. acanthocnemis (Mart.) A.D.Hawkes; Arq. Bot. Estado São Paulo, n. s., 2: 193 (1952)
= Yuyba simplicifrons var. subpinnata (Trail) A.D.Hawkes; Arq. Bot. Estado São Paulo, n. s., 2: 193 (1952)
= Yuyba stahelii L.H.Bailey; Bull. Torrey Bot. Club 75: 106 (1948) ex Maguire
= Yuyba trinitensis L.H.Bailey; Gentes Herbarum 7: 416 (1947)