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CCDB → Angiosperms → Rubiaceae → Canthium
| Taxon name | Status | Median (n) |
| Canthium angustifolium Roxb. | Accepted | 22 |
| Canthium coromandelicum (Burm.) Alston | Accepted | 22 |
| Canthium suberosum Codd | Accepted | 22 |
| Canthium setiflorum Hiern | Synonym of Bullockia setiflora (Hiern) Razafim. & Lantz & B. Bremer | 22 |
| Canthium parviflorum Lam. | Synonym of Canthium coromandelicum (Burm.) Alston | 22 |
| Plectronia parviflora (Lam.) Bedd. | Synonym of Canthium coromandelicum (Burm.) Alston | 22 |
| Plectronia parviflora Harv. & Sond. | Synonym of Canthium kuntzeanum Bridson | 22 |
| Canthium gueinzii Sond. | Synonym of Keetia gueinzii (Sond.) Bridson | 21 |
| Canthium rubens Hiern | Synonym of Keetia rubens (Hiern) Bridson | 22 |
| Canthium venosum (Oliv.) Hiern | Synonym of Keetia venosa (Oliv.) Bridson | 22 |
| Canthium dicoccum (Gaertn.) Merr. | Synonym of Psydrax dicoccos Gaertn. | 22 |
| Canthium subcordatum DC. | Synonym of Psydrax subcordata (DC.) Bridson | 22 |
| Canthium umbellatum Wight | Synonym of Psydrax umbellata (Wight) Bridson | 22 |