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CCDB → Angiosperms → Orchidaceae → Cypripedium → Cypripedium passerinum Richardson
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cypripedium passerinum Richardson | Cypripedium passerinum Richardson | 20 | IPCN65 | Love & Liive 1965b | ||
| Cypripedium passerinum Richardson | Cypripedium passerinum Richardson | 20 | IPCN online | Love, A. & D. Love. 1981c. In Chromosome number reports LXXIII. Taxon 30: 845–851. | |||
| Cypripedium passerinum var. minganense Vict. | Cypripedium passerinum Richardson | 20 | IPCN online | GERVAIS, C., R. Trahan & J. Gagnon. 1999. IOPB chromosome data 14. Newslett. Int. Organ. Pl. Biosyst. (Oslo) 30: 10–15. | |||
| ! | Cypripedium passerinum Richardson | Cypripedium passerinum Richardson | 20 | IPCN66 | Love & Ritchie 1966 | ||
| ! | Cypripedium passerinum Richardson | Cypripedium passerinum Richardson | 20 | IPCN67-71 | LOEVE, A., & w. SIMON. 1968. Cytotaxonomical notes on some American orchids. southw. Naturalist 13: 335-342. | ||
| ! | Cypripedium passerinum Richardson | Cypripedium passerinum Richardson | 20 | eFlora |