| Campanula rotundifolia | GB, VC17 Surrey, Richmond Park | Edward Benedict Bangerter | Edward Benedict Bangerter | 4/8/1936 | SLBI |
| Capsella bursa-pastoris | GB, VC21 Middlesex, Hammersmith | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/5/1939 | SLBI |
| Cardamine hirsuta | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 14/5/1950 | SLBI |
| Cardamine pratensis x fragilis | GB, VC17 Surrey, Ockham | Edward Benedict Bangerter | Edward Benedict Bangerter | 26/4/1936 | SLBI |
| Carduus crispus | GB, VC17 Surrey, Kew | Edward Benedict Bangerter | Edward Benedict Bangerter | 16/7/1938 | SLBI |
| Carex nigra | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | | SLBI |
| Centaurea nigra x jacea = C. x moncktonii | GB, VC17 Surrey, Oxted | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/6/1937 | SLBI |
| Centaurea scabiosa | GB, VC17 Surrey, Tadworth | Edward Benedict Bangerter | Edward Benedict Bangerter | 3/7/1937 | SLBI |
| Centaurium erythraea | GB, VC17 Surrey, Westcott | Edward Benedict Bangerter | Edward Benedict Bangerter | 5/7/1936 | SLBI |
| Centunculus minimus | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 28/8/1949 | SLBI |
| Cerastium fontanum subsp. vulgare | GB, VC17 Surrey, Barnes | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/5/1939 | SLBI |
| Cerastium fontanum subsp. vulgare | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 29/6/1948 | SLBI |
| Chamerion angustifolium | GB, VC21 Middlesex, Finchley | Edward Benedict Bangerter | Edward Benedict Bangerter | 19/7/1935 | SLBI |
| Chelidonium majus | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 30/5/1939 | SLBI |
| Chrysanthemum segetum | GB, VC17 Surrey, Tandridge | Edward Benedict Bangerter | | 27/6/1937 | SLBI |
| Cichorium intybus | GB, VC17 Surrey, Bookham | Edward Benedict Bangerter | London Natural History Society | 9/8/1953 | SLBI |
| Circaea lutetiana | GB, VC17 Surrey, Ranmore Common | Edward Benedict Bangerter | Edward Benedict Bangerter | 5/7/1936 | SLBI |
| Cirsium dissectum | GB, VC17 Surrey, Mitcham Common | Edward Benedict Bangerter | Edward Benedict Bangerter | 3/7/1939 | SLBI |
| Claytonia perfoliata | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 17/4/1938 | SLBI |
| Clematis vitalba | GB, VC17 Surrey, Box Hill | Edward Benedict Bangerter | Edward Benedict Bangerter | 30/8/1937 | SLBI |
| Clematis vitalba | GB, VC24 Buckinghamshire, Chenies | Edward Benedict Bangerter | Edward Benedict Bangerter | 8/8/1938 | SLBI |
| Clinopodium | GB, VC24 Buckinghamshire, Chenies | Edward Benedict Bangerter | Edward Benedict Bangerter | 8/8/1927 | SLBI |
| Convolvulus arvensis | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 21/8/1938 | SLBI |
| Conyza canadensis | GB, VC17 Surrey, Barnes | Edward Benedict Bangerter | Edward Benedict Bangerter | 7/8/1936 | SLBI |
| Cornus sanguinea | GB, VC17 Surrey, Box Hill | Edward Benedict Bangerter | Edward Benedict Bangerter | 30/8/1937 | SLBI |
| Cornus sanguinea | GB, VC17 Surrey, Tandridge | Edward Benedict Bangerter | Edward Benedict Bangerter | 10/6/1939 | SLBI |
| Coronopus didymus | GB, VC21 Middlesex, Chiswick, Duke's Meadows | Edward Benedict Bangerter | Edward Benedict Bangerter | 28/6/1939 | SLBI |
| Crataegus laevigata | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 8/5/1949 | SLBI |
| Crataegus monogyna | GB, VC17 Surrey, Barnes | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/5/1939 | SLBI |
| Crataegus monogyna | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 8/5/1949 | SLBI |
| Crepis vesicaria subsp. taraxacifolia | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 11/6/1936 | SLBI |
| Crithmum maritimum | GB, VC14 East Sussex, Rye Harbour | Edward Benedict Bangerter | Edward Benedict Bangerter | 16/9/1938 | SLBI |
| Cruciata laevipes | GB, VC17 Surrey, Oxted | Edward Benedict Bangerter | Edward Benedict Bangerter | 10/6/1939 | SLBI |
| Cymbalaria muralis | GB, VC17 Surrey, Tandridge | Edward Benedict Bangerter | Edward Benedict Bangerter | 10/6/1939 | SLBI |
| Cytisus scoparius | GB, VC17 Surrey, Barnes Common | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/5/1939 | SLBI |
| Dactylorhiza fuchsii | GB, VC17 Surrey, Marden Park | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/6/1937 | SLBI |
| Dactylorhiza maculata subsp. ericetorum | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 6/7/1948 | SLBI |
| Dactylorhiza maculata subsp. ericetorum | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 6/7/1948 | SLBI |
| Daucus carota | GB, VC17 Surrey, Mickleham | Edward Benedict Bangerter | Edward Benedict Bangerter | 30/8/1937 | SLBI |
| Digitalis purpurea | GB, VC17 Surrey, Westcott | Edward Benedict Bangerter | Edward Benedict Bangerter | 5/7/1936 | SLBI |