| Bougainvillea berberidifolia Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea brachycarpa Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea bracteata Pers. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea brasiliensis Raeusch. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea brasiliensis Lund ex Choisy [Invalid] |
Synonym |
 |
WCSP (in review) |
| Bougainvillea buttiana Holttum & Standl. |
Accepted |
 |
TRO |
| Bougainvillea campanulata Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea fasciculata Heimerl |
Unresolved |
 |
TRO |
| Bougainvillea frondosa Griseb. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra Choisy |
Accepted |
 |
WCSP (in review) |
| Bougainvillea glabra var. acutibracteata Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra var. alba Mendes & Viégas |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra var. brachycarpa (Heimerl) Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra var. graciliflora Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra var. obtusibracteata Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra var. pomacea (Choisy) Luetzelb. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea glabra var. sanderiana Bosschere |
Synonym |
 |
WCSP (in review) |
| Bougainvillea graciliflora Heimerl |
Unresolved |
 |
TRO |
| Bougainvillea herzogiana Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea infesta Griseb. |
Accepted |
 |
WCSP (in review) |
| Bougainvillea lehmanniana Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea lehmannii Heimerl |
Accepted |
 |
TRO |
| Bougainvillea longispinosa Rusby |
Synonym |
 |
WCSP (in review) |
| Bougainvillea luteoalba Heimerl ex Killeen |
Unresolved |
 |
TRO |
| Bougainvillea malmeana Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea modesta Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea pachyphylla Heimerl ex Standl. |
Accepted |
 |
WCSP (in review) |
| Bougainvillea patagonica Decne. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea peruviana Bonpl. |
Accepted |
 |
WCSP (in review) |
| Bougainvillea peruviana Nees & Mart. [Illegitimate] |
Synonym |
 |
WCSP (in review) |
| Bougainvillea pomacea Choisy |
Accepted |
 |
WCSP (in review) |
| Bougainvillea praecox Griseb. |
Accepted |
 |
WCSP (in review) |
| Bougainvillea praecox var. rhombifolia Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea praecox var. spinosa Chodat & Hassl. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea racemosa Blanco |
Unresolved |
 |
WCSP (in review) |
| Bougainvillea rubicunda Schott ex Rohrb. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea speciosa Schnizl. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea spectabilis Willd. |
Accepted |
 |
WCSP (in review) |
| Bougainvillea spectabilis var. glabra (Choisy) Hook. |
Synonym |
 |
WCSP (in review) |
| Bougainvillea spectabilis var. hirsutissima J.A.Schmidt |
Synonym |
 |
WCSP (in review) |
| Bougainvillea spectabilis var. parviflora Mart. ex J.A.Schmidt |
Synonym |
 |
WCSP (in review) |
| Bougainvillea spectabilis var. virescens (Choisy) J.A.Schmidt |
Synonym |
 |
WCSP (in review) |
| Bougainvillea spinosa (Cav.) Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea spinosa var. conferta Chodat |
Synonym |
 |
WCSP (in review) |
| Bougainvillea spinosa f. eubracteata Heimerl |
Synonym |
 |
TRO |
| Bougainvillea spinosa f. microbracteata Heimerl |
Synonym |
 |
TRO |
| Bougainvillea spinosa f. parvifolia Heimerl |
Synonym |
 |
TRO |
| Bougainvillea stipitata Griseb. |
Accepted |
 |
WCSP (in review) |
| Bougainvillea stipitata var. fiebrigii Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea stipitata var. grisebachiana Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea stipitata var. kuntzeana Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea stipitata var. longispinosa (Rusby) Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea stipitata var. stuckertiana Heimerl |
Synonym |
 |
WCSP (in review) |
| Bougainvillea trollii Heimerl |
Accepted |
 |
WCSP (in review) |
| Bougainvillea virescens Choisy |
Synonym |
 |
WCSP (in review) |