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CCDB → Angiosperms → Brassicaceae → Megadenia
| Taxon name | Status | Median (n) |
| Megadenia pygmaea Maxim. | Accepted | 10 |
| Megadenia bardunovii Popov | Synonym of Megadenia pygmaea Maxim. | 10 |
| Megadenia speluncarum Vorob. & Vorosch. & Gorovij | Synonym of Megadenia pygmaea Maxim. | 10 |