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CCDB → Angiosperms → Lamiaceae → Stachys → Stachys aspera Michx.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Stachys ambigua (A. Gray) Britton | Stachys aspera Michx. | 83 | flora of NW Europe | http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=3462 | ||
| Stachys aspera Michx. | Stachys aspera Michx. | 68 | IPCN online | Mulligan, G. A. & D. B. Munro. 1989. Taxonomy of species of North American Stachys (Labiatae) found north of Mexico. Naturaliste Canad. 116: 35–51. | |||
| Stachys aspera Michx. | Stachys aspera Michx. | c.60 | IPCN online | Probatova, N. S. 2000. Chromosome numbers in some plant species from the Razdolnaya (Suifun) river basin (Primorsky Territory). Bot. Žhurn. (Moscow & Leningrad) 85(12): 102–107. | |||
| ! | Stachys palustris subsp. aspera (Michx.) D. -Sok. | Stachys aspera Michx. | 102 | Love, 1948 | Lang 1940. | ||
| ! | Stachys palustris subsp. aspera (Michx.) D. -Sok. | Stachys aspera Michx. | c.64 | Love, 1948 | Wulff 1938. | ||
| ! | Stachys ambigua (A. Gray) Britton | Stachys aspera Michx. | 83 | IPCN73-74 | MORTON, J.K. 1973. A cytological study of the British Labiatae excluding Mentha) (Lamiaceae). Watsonia 9: 239-246. | ||
| ! | Stachys palustris subsp. aspera (Michx.) D. -Sok. | Stachys aspera Michx. | 78, 86 | IPCN73-74 | WILCOCK, C.C., & B.M.G. JONES. 1974. The identification and origin of Stachys X ambigua Sm. Watsonia 10: 139-147. |