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CCDB → Angiosperms → Lamiaceae → Pycnanthemum → Pycnanthemum tenuifolium Schrad.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Pycnanthemum tenuifolium Schrad. | Pycnanthemum tenuifolium Schrad. | 40 | IPCN online | Gill, L. S. 1981. Chromosomal evolution and incidence of polyploidy in the Canadian Labiatae. Rev. Cytol. Biol. Vég., Bot. 4: 331–339. | |||
| ! | Pycnanthemum tenuifolium SCHRADER | Pycnanthemum tenuifolium Schrad. | 40 | IPCN online | Gill, L. S. 1979a. In IOPB chromosome number reports LXV. Taxon 28: 632. | ||
| ! | Pycnanthemum tenuifolium SCHRADER | Pycnanthemum tenuifolium Schrad. | 40 | IPCN online | Gill, L. S. 1981a. Biosystematics of the tribe Satureineae (Labiatae) in Canada I. Cytologia 46: 45–55. | ||
| Pycnanthemum tenuifolium Schrad. | Pycnanthemum tenuifolium Schrad. | 40, 80+2f | IPCN67-71 | CHAMBERS, H.L . & K.L. CHAMBERS. 1971. Artificial and natural hybrids in Pycnanthemum (Labiatael. Brittonia 23: 71-88. |