| Quassia africana (Baill.) Baill. |
Accepted |
 |
WCSP (in review) |
| Quassia alatifolia Stokes |
Synonym |
 |
WCSP (in review) |
| Quassia amara L. |
Accepted |
 |
WCSP (in review) |
| Quassia amara var. grandiflora Hemsl. |
Synonym |
 |
TRO |
| Quassia amara f. paniculata (Engl.) Cronquist |
Synonym |
 |
TRO |
| Quassia amara var. paniculata Engl. |
Synonym |
 |
TRO |
| Quassia aruba (A.St.-Hil. ex DC.) D.Dietr. |
Synonym |
 |
WCSP (in review) |
| Quassia baileyana (Oliv.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia bidwillii (Hook.f.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia borneensis Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia cedron (Planch.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia cedron (Planch.) Baill. |
Synonym |
 |
TRO |
| Quassia crocea Vahl |
Synonym |
 |
WCSP (in review) |
| Quassia crustacea (Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia cuneata (A.St.-Hil. & Tul.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia cuspidata (Spruce ex Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia dioica P.J.Bergius |
Synonym |
 |
WCSP (in review) |
| Quassia excelsa Sw. |
Synonym |
 |
WCSP (in review) |
| Quassia ferruginea (A.St.-Hil.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia floribunda (A.St.-Hil.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia gabonensis Pierre |
Accepted |
 |
WCSP (in review) |
| Quassia glabra (Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia glauca (DC.) Spreng. |
Synonym |
 |
WCSP (in review) |
| Quassia grandifolia (Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia guianensis (Aubl.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia harmandiana (Pierre ex Laness.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia indica (Gaertn.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia insignis (A.St.-Hil. & Tul.) Noot. |
Unresolved |
 |
WCSP (in review) |
| Quassia intermedia (Mansf.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia klaineana Pierre |
Synonym |
 |
TRO |
| Quassia laevis (Griseb.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia maiana (Casar.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia monophylla (Oliv.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia multiflora (A.Juss.) Noot. |
Synonym |
 |
WCSP (in review) |
| Quassia obovata (Spruce ex Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia officinalis Rich. |
Synonym |
 |
WCSP (in review) |
| Quassia orinocensis (Kunth) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia paraensis (Ducke) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia pentandra Stokes |
Synonym |
 |
WCSP (in review) |
| Quassia pohliana (Boas) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia polygama Linds. |
Synonym |
 |
WCSP (in review) |
| Quassia praecox (Hassl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia salubris (Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia sanguinea Cheek & Jongkind |
Unresolved |
 |
WCSP (in review) |
| Quassia schweinfurthii (Oliv.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia silvestris Cheek & Jongkind |
Unresolved |
 |
WCSP (in review) |
| Quassia simarouba L.f. |
Accepted |
 |
WCSP (in review) |
| Quassia simarouba W.Wright [Illegitimate] |
Synonym |
 |
WCSP (in review) |
| Quassia simaruba Blanco |
Synonym |
 |
WCSP (in review) |
| Quassia suaveolens (A.St.-Hil.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia subcymosa (A.St.-Hil. & Tul.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia suffruticosa (Engl.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia tricarpa Blanco |
Synonym |
 |
WCSP (in review) |
| Quassia trichilioides (A.St.-Hil.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia tulae (Urb.) Noot. |
Accepted |
 |
WCSP (in review) |
| Quassia undulata (Guill. & Perr.) D.Dietr. |
Accepted |
 |
WCSP (in review) |
| Quassia versicolor (A.St.-Hil.) Spreng. |
Accepted |
 |
WCSP (in review) |
| Quassia warmingiana (Engl.) Noot. |
Accepted |
 |
WCSP (in review) |