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 → Rubiaceae → Kadua
| Taxon name | Status | Median (n) |
| Kadua centranthoides Hook. & Arn. | Accepted | 50 |
| Hedyotis terminalis (Hook. & Arn.) W. L. Wagner & D. R. Herbst | Synonym of Kadua affinis Cham. & Schltdl. | 50 |
| Gouldia axillaris Wawra | Synonym of Kadua axillaris (Wawra) W. L. Wagner & Lorence | 36 |
| Hedyotis centranthoides (Hook. & Arn.) Steud. | Synonym of Kadua centranthoides Hook. & Arn. | 50 |
| Hedyotis schlechtendahliana subsp. remyi (Hillebr.) Fosberg | Synonym of Kadua cordata subsp. remyi (Hillebr.) W. L. Wagner & Lorence | 47 |
| Hedyotis elatior (H. Mann) Fosberg | Synonym of Kadua elatior (H. Mann) A. Heller | None |
| Hedyotis littoralis (Hillebr.) Fosberg | Synonym of Kadua littoralis Hillebr. | 50 |