| 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unknown s.n. | 
                                1834 | 
                                United States of America | 
                                North Carolina | 
                                 | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                W. H. Leggett s.n. | 
                                14 Aug 1868 | 
                                United States of America | 
                                New Jersey | 
                                Near Hudson Station Northern R.R. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                A. Commons s.n. | 
                                02 Oct 1869 | 
                                United States of America | 
                                Delaware | 
                                New Castle Co. Centreville. About… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                W. M. Canby s.n. | 
                                June 1874 | 
                                United States of America | 
                                Delaware | 
                                Lewiston. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                W. M. Canby s.n. | 
                                July 1874 | 
                                United States of America | 
                                Delaware | 
                                Leweston. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                T. C. Porter  | 
                                Sept. 1874 | 
                                United States of America | 
                                Pennsylvania | 
                                Northampton Co. Easton. | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                T. C. Porter s.n. | 
                                Sept. 1874 | 
                                United States of America | 
                                Pennsylvania | 
                                Northampton Co. Easton. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                T. C. Porter s.n. | 
                                Sept. 1875 | 
                                United States of America | 
                                Pennsylvania | 
                                Northampton Co. Easton. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                W. H. Leggett s.n. | 
                                10 Sep 1876 | 
                                United States of America | 
                                New Jersey | 
                                Monmouth Co. Holmdel. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                W. H. Leggett s.n. | 
                                10 Sep 1876 | 
                                United States of America | 
                                New Jersey | 
                                Monmouth Co. Holmdel. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                G. R. Vasey s.n. | 
                                Aug. 1881 | 
                                United States of America | 
                                New Mexico | 
                                Doña Ana Co. Las Cruces. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                A. Commons s.n. | 
                                24 Jul 1886 | 
                                United States of America | 
                                Delaware | 
                                New Castle Co. Waste places,… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                J. K. Small s.n. | 
                                30 Jul 1892 | 
                                United States of America | 
                                Virginia | 
                                Smyth Co. S. Fork Holston… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                J. K. Small s.n. | 
                                08 Aug 1892 | 
                                United States of America | 
                                Virginia | 
                                Smyth Co. S. Fork Holston… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                A. A. Heller 1071 | 
                                13 Jul 1893 | 
                                United States of America | 
                                Virginia | 
                                Norfolk (Independent City). Norfolk Co.… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                A. Duss 2940 | 
                                1893 | 
                                Guadeloupe | 
                                Basse-Terre | 
                                Camp Jacob. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                N. L. Britton s.n. | 
                                Sept. 1894 | 
                                United States of America | 
                                New York | 
                                Richmond Co. Richmond, Staten Island. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                N. L. Britton s.n. | 
                                Sept. 1894 | 
                                United States of America | 
                                New York | 
                                Richmond Co. Richmond, Staten Island. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                J. K. Small s.n. | 
                                24 Jul 1895 - 26 Jul 1895 | 
                                United States of America | 
                                Georgia | 
                                Charlton Co. The St. Mary's… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                F. E. Lloyd s.n. | 
                                22 Aug 1900 | 
                                United States of America | 
                                Louisiana | 
                                Plaquemines Parish. Port Ends. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                H. L. Fisher s.n. | 
                                12 Aug 1902 | 
                                United States of America | 
                                New Jersey | 
                                Hunterdon Co. Ringoes. | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                A. Duss 4158 | 
                                Apr 1903 | 
                                Guadeloupe | 
                                Basse-Terre | 
                                Trouvé antour de plasieurs maisons… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                S. Brown 72 | 
                                31 Aug 1905 - 20 Sep 1905 | 
                                Bermuda | 
                                — | 
                                shaded wall, North Shore | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. P. Bicknell 7573 | 
                                06 Oct 1906 | 
                                United States of America | 
                                New York | 
                                Long Island. Garden City. | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. O. Wooton s.n. | 
                                30 Jul 1907 | 
                                United States of America | 
                                New Mexico | 
                                Doña Ana Co. The Mesilla… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. C. Wurzlow 1050 | 
                                21 Jun 1910 | 
                                United States of America | 
                                Louisiana | 
                                Terrebonne Parish. On roadside, vicinity… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. P. Bicknell 7574 | 
                                05 Jul 1913 | 
                                United States of America | 
                                Massachusetts | 
                                Dukes Co. Martha's Vineyard, Chilmark. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                F. S. Collins 275 | 
                                24 Jul 1913 | 
                                Bermuda | 
                                — | 
                                Government Hill. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                L. Abrams 6759 | 
                                15 Sep 1917 | 
                                United States of America | 
                                California | 
                                Placer Co. 3-5 mi above… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                K. K. Mackenzie s.n. | 
                                21 May 1921 | 
                                United States of America | 
                                New Jersey | 
                                Warren Co. Roadside, N of… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                L. C. Hinckley 2772 | 
                                18 Jun 1943 | 
                                United States of America | 
                                Texas | 
                                Presidio Co. Trans-Pecos Texas. In… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unknown s.n. | 
                                24 Jul 1945 | 
                                United States of America | 
                                Florida | 
                                Alachua Co. Med'l Plant Garden,… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unknown s.n. | 
                                03 Oct 1946 | 
                                United States of America | 
                                Massachusetts | 
                                Norfolk Co. Wellesley. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified 38/48 | 
                                15 Jul 1953 | 
                                — | 
                                — | 
                                 | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified s.n. | 
                                15 Jul 1954 | 
                                United States of America | 
                                New York | 
                                Bronx Co. Herb Garden, New… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                S. G. Shetler 307 | 
                                29 Aug 1955 | 
                                United States of America | 
                                Pennsylvania | 
                                Somerset Co. The Allegheny Mountains… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                J. H. Lehr 539 | 
                                25 Aug 1956 | 
                                United States of America | 
                                New York | 
                                Rockland Co. Woods road, N… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                A. E. Radford 36297 | 
                                06 Jul 1958 | 
                                United States of America | 
                                North Carolina | 
                                Beaufort Co. Salt marsh, Belhaven. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                D. J. Pinkava P5515 | 
                                12 Jun 1968 | 
                                Mexico | 
                                Coahuila | 
                                Cuatro Ciénegas Basin. Poso de… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                K. E. Rogers 8538-G | 
                                24 Jul 1972 | 
                                United States of America | 
                                Mississippi | 
                                Forrest Co. Hattiesburg; Hwy 42… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                W. C. Brumbach 8017 | 
                                01 Sep 1972 | 
                                United States of America | 
                                Pennsylvania | 
                                Berks Co. Pricetown, Ruscombmanor Township. | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                R. Moran 29864 | 
                                31 Oct 1981 | 
                                Mexico | 
                                Baja California | 
                                Near reservoir, old huerta on… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                S. D. Koch 911 | 
                                21 May 1991 | 
                                Mexico | 
                                México | 
                                Tepetlaoxtoc Mun. Junction highway Texcoco-Calpulapan,… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                J. R. MacDonald 10902 | 
                                07 Aug 1997 | 
                                United States of America | 
                                Mississippi | 
                                Oktibbeha Co. Maben, ca. 0.15… | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. Koziol 1641 | 
                                02 Aug 2006 | 
                                Poland | 
                                — | 
                                Slask Dolny. Lisowiec gm. Scinawa,… | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                T. C. Porter s.n. | 
                                — | 
                                United States of America | 
                                Pennsylvania | 
                                Northampton Co. Easton. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified s.n. | 
                                — | 
                                — | 
                                — | 
                                 | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified s.n. | 
                                June 8th | 
                                United States of America | 
                                Arkansas | 
                                Pulaski Co. Little Rock. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified s.n. | 
                                — | 
                                — | 
                                — | 
                                 | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                H. E. Ahles s.n. | 
                                9/18/44 | 
                                — | 
                                — | 
                                 | 
                                — | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                J. Hartling 33572 | 
                                9/6/11 | 
                                — | 
                                — | 
                                 | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. Palmer s.n. | 
                                — | 
                                United States of America | 
                                Florida | 
                                East Florida. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unknown s.n. | 
                                — | 
                                United States of America | 
                                Michigan | 
                                Kalamazoo Co. Kalamazoo. | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unknown s.n. | 
                                — | 
                                United States of America | 
                                Michigan | 
                                Kalamazoo Co. Kalamazoo. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                T. C. Porter s.n. | 
                                Sept. 21/93 | 
                                United States of America | 
                                Pennsylvania | 
                                Northampton Co. Easton. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified s.n. | 
                                — | 
                                — | 
                                — | 
                                 | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                E. Palmer 383 | 
                                — | 
                                United States of America | 
                                Florida | 
                                East Florida. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                Collector unspecified s.n. | 
                                — | 
                                United States of America | 
                                Pennsylvania | 
                                Northampton Co. College Hill, Easton. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                — | 
                                — | 
                                — | 
                                — | 
                                 | 
                                — | 
                                 | 
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                                | 
                                    Mentha rotundifolia (L.) Huds.
                                 | 
                                — | 
                                — | 
                                — | 
                                — | 
                                 | 
                                — | 
                                 | 
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