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CCDB → Angiosperms → Podostemaceae → Zeylanidium
| Taxon name | Status | Median (n) |
| Zeylanidium subulatum (Gardner) C. Cusset | Accepted | 20 |
| Podostemum subulatum Gardner | Synonym of Zeylanidium subulatum (Gardner) C. Cusset | 20 |