+ | Potamogeton compressus | GB, VC38 Warwickshire, Grand Union Canal at Warwick | Henry Bromwich | | 8/1886 | BIRM |
+ | Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Grand Union Canal at Warwick | Henry Bromwich | | 8/1886 | BIRM |
| Ranunculus trichophyllus var. radians | GB, VC38 Warwickshire, Grove Park | Henry Bromwich | Augustin Ley William Henry Purchas William Philip Hiern | 6/1872 | BIRM |
| Apera spica-venti | GB, VC38 Warwickshire, Guy's Cliffe | Henry Bromwich | Robert Large Baker | 8/1879 | BIRM |
| Ribes rubrum | GB, VC38 Warwickshire, Guy's Cliffe | Henry Bromwich | Botanical Exchange Club of The British Isles Augustin Ley | 4/1881 | BIRM |
| Viola odorata x hirta = V. x scabra | GB, VC38 Warwickshire, Halford | Henry Bromwich | Lomax | 4/1885 | MANCH |
| Crocus flavus | GB, VC38 Warwickshire, Hampton on the Hill | Albert Bruce Jackson Henry Bromwich | Botanical Exchange Club of The British Isles Augustin Ley Albert Bruce Jackson | 10/1899 | BIRM |
| Dianthus armeria | GB, VC38 Warwickshire, Hampton on the Hill | Henry Bromwich | Augustin Ley | 7/1867 | BIRM |
| Mentha aquatica | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Henry Bromwich | 8/1878 | SLBI |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Henry Bromwich | 8/1881 | ABS |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Augustin Ley Henry Bromwich | 8/1881 | BIRM |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles William Hunt Painter | 8/1881 | ABS |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Shrewsbury Public Library | 8/1881 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Harry Joseph Riddelsdell | 9/1877 | K |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Charles Bailey John Isaac Briquet | 9/1877 | MANCH |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Charles Bailey John Isaac Briquet John Ray Hardy | 9/1877 | MANCH |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Charles Bailey | 8/1878 | MANCH |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Charles Bailey | 8/1881 | MANCH |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club Charles Cardale Babington Henry Bromwich | 9/1878 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club | 9/1878 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford | 8/1890 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Charles Cardale Babington | 9/1877 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Charles Cardale Babington | 9/1877 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Charles Cardale Babington | 8/1878 | CGE |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Charles Bailey John Isaac Briquet | 9/1886 | MANCH |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles William Hadden Beeby | 9/1886 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles | 9/1886 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles | 9/1886 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Druce Herbarium, Oxford | 9/1878 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles | 9/1886 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles | 8/1890 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | John Durbin Gray Botanical Exchange Club of The British Isles | 8/1881 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles Augustin Ley | 9/1886 | BIRM |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles William Hunt Painter | 8/1890 | ABS |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Edward Francis Linton John Gilbert Baker | 8/1890 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Edward Francis Linton | 14/8/1893 | LIV |
+ | Mentha cardiaca | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club Charles Bailey | 9/1878 | MANCH |
| Mentha gentilis var. gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Shrewsbury Public Library Henry Bromwich | 9/1878 | K |
| Mentha gracilis var. cardiaca | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Augustin Ley | 9/1878 | BIRM |
| Atriplex patula | GB, VC38 Warwickshire, Hatton | Henry Bromwich | Botanical Exchange Club of The British Isles Henry Bromwich | 9/1881 | ABS |