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CCDB → Angiosperms → Plantaginaceae → Veronica → Veronica americana Schwein. ex Benth.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | veronic | IOPB Chromosome data 13 | Int. Organ. Pl. Biosyst. Newslett. | 29: 18-22 | 1998 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | veronic | Chromosome numbers of some North American Scrophulariaceae, mostly Californian. | Madroo | 39: 137-149 | 1992 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | veronic | Chromosome numbers of some North American Scrophulariaceae, mostly Californian. | Madroo | 39: 137-149 | 1992 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | veronic | Chromosome numbers of some North American Scrophulariaceae, mostly Californian. | Madroo | 39: 137-149 | 1992 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | veronic | Flora of the Queen Charlotte Islands. Part 2. Cytological aspects of the Vascular Plants. | Queen's Printer, Ottawa | page 148 | 1968 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | veronic | IOPB chromosome number reports LXXV. | Taxon | 31: 344-360 | 1982 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | veronic | Chromosome numbers in vascular plants from the southern part of the Soviet Far East | Bot. Zurn. | 69: 1699-1700 | 1984 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | veronic | Chromosome counts from New Mexico and southern Colorado. | Phytologia | 54: 302-309 | 1983 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | veronic | Experimental taxonomy of Veronica Section Beccabungae Grieseb. | Ph. D. Thesis Univ. Cambridge | | 1970 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | veronic | Geographical distribution on polyploid species (investigation of flora of Kamchatka) | Vestnik. Leningr. Univ., ser. Biol. | 1963, 3:38-52 | 1963 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | 36 | veronic | Experimentelle Untersuchungen in der Sektion Beccabunga Griseb. der Gattung Veronica. | Flora | 130, 3: 305-350 | 1936 | |
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | veronic | Geographical distribution of polyploid species of plants (investigation of the flora of Sakhalin island) | Vestnik. Leningr. Univ., ser. Biol. | 1960, 21: 42-58 | 1960 | ||
| Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | IPCN online | Love, A. & D. Love. 1982. In: A Löve (ed.), IOPB chromosome number reports LXXV. Taxon 31(2): 344–360. | |||
| Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | IPCN online | Ward, D. E. 1983. Chromosome counts from New Mexico and southern Colorado. Phytologia 54: 302–309. | |||
| Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | IPCN online | Rudyka, E. G. 1984. Chromosome numbers in vascular plants from the southern part of the Soviet Far East. Bot. Zhurn. SSSR 69(12): 1699–1700. (In Russian). | |||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 18 | IPCN online | Chuang, T. I. & L. R. Heckard. 1992. Chromosome numbers of some North American Scrophulariaceae, mostly Californian. Madroño 39(2): 137–149. | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | IPCN67-71 | TAYLOR, R.L., & G.A. MULLIGAN. 1968. Flora of the Queen Charlotte Islands. Part 2. Cytological aspects of the Vascular Plants. Queen's Printer, Ottawa. pp. 148. | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | Darlington, 1955 | Schlenker 1936 | ||
| ! | Veronica americana Schwein. ex Benth. | Veronica americana Schwein. ex Benth. | 36 | Cave1963 | Sokolovskaya 1963 |