CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
CCDB → Angiosperms → Apocynaceae → Piaranthus
| Taxon name | Status | Median (n) |
| Piaranthus comptus N. E. Br. | Accepted | 11 |
| Piaranthus cornutus N. E. Br. | Accepted | 11 |
| Piaranthus decorus (Masson) N. E. Br. | Accepted | 11 |
| Piaranthus framesii Pillans | Accepted | 11 |
| Piaranthus globosus A. C. White & B. Sloane | Accepted | 22 |
| Piaranthus pallidus C. A. Lückh. | Accepted | 11 |
| Piaranthus parvulus N. E. Br. | Accepted | 11 |
| Piaranthus punctatus (Masson) R. Br. ex Schult. | Accepted | 11 |
| Piaranthus ruschii Nel | Accepted | 11 |
| Piaranthus pillansii N. E. Br. | Unresolved | 11 |
| Piaranthus pulcher var. nebrownii (Dinter) A. C. White & B. Sloane | Unresolved | 11 |