| Plantago maritima | IE, VCH1 South Kerry, Derrynane | Noel Yvri Sandwith | | 18/6/1952 | K |
| Veronica catenata | IE, VCH1 South Kerry, Castlegregory | Noel Yvri Sandwith | | 16/6/1922 | K |
| Thymus praecox subsp. arcticus | GB, VC96 East Inverness-shire, Glen Affric | Noel Yvri Sandwith | | 12/7/1947 | K |
| Veronica agrestis | GB, VC96 East Inverness-shire, Cannich | Noel Yvri Sandwith | | 19/7/1947 | K |
| Lamium confertum | GB, VC94 Banffshire, Cullen | Cecil Ivry Sandwith Noel Yvri Sandwith | | 22/7/1938 | K |
| Teucrium scorodonia | GB, VC92 South Aberdeenshire, Potarch Bridge | Noel Yvri Sandwith | | 26/7/1938 | K |
| Callitriche autumnalis | GB, VC89 East Perthshire, Stormont Loch | Cecil Ivry Sandwith Noel Yvri Sandwith | | 31/7/1936 | K |
| Galeopsis versicolor | GB, VC88 Mid Perthshire, Lawers | Noel Yvri Sandwith | Noel Yvri Sandwith | 28/8/1951 | K |
| Thymus praecox subsp. arcticus | GB, VC88 Mid Perthshire, Ben Lawers,Lochan nan Cat | Noel Yvri Sandwith | | 18/7/1948 | K |
| Alchemilla wichurae | GB, VC88 Mid Perthshire, Ben Lawers | Noel Yvri Sandwith | | 18/7/1948 | K |
| Phalaris arundinacea | GB, VC69 Westmorland, Appleby | Noel Yvri Sandwith | | 12/7/1938 | K |
| Scrophularia umbrosa | GB, VC69 Westmorland, Appleby | Noel Yvri Sandwith | | 12/7/1938 | K |
| Blysmus compressus | GB, VC65 North-west Yorkshire, Sedbergh | Noel Yvri Sandwith | | 12/7/1961 | K |
| Meum athamanticum | GB, VC65 North-west Yorkshire, Howgill Fells | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/6/1934 | K |
| Meum athamanticum | GB, VC65 North-west Yorkshire, Howgill | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/6/1934 | K |
| Meum athamanticum | GB, VC65 North-west Yorkshire, Garsdale | Arthur Hugh Garfit Alston Cecil Ivry Sandwith Noel Yvri Sandwith | | 7/7/1934 | K |
| Meum athamanticum | GB, VC65 North-west Yorkshire | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/6/1934 | K |
| Veronica anagallis-aquatica | GB, VC64 Mid-west Yorkshire, hawkswick | Noel Yvri Sandwith | | 5/7/1934 | K |
| Scrophularia nodosa | GB, VC64 Mid-west Yorkshire, Clapham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/7/1934 | K |
| Scrophularia nodosa | GB, VC64 Mid-west Yorkshire, Clapham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/7/1934 | K |
| Callitriche platycarpa | GB, VC64 Mid-west Yorkshire, Buckden | Noel Yvri Sandwith | | 12/7/1961 | K |
| Veronica anagallis-aquatica | GB, VC64 Mid-west Yorkshire, Buckden | Noel Yvri Sandwith | | 10/7/1947 | K |
| Scrophularia umbrosa | GB, VC64 Mid-west Yorkshire, Barden | Noel Yvri Sandwith | | 9/7/1961 | K |
| Mentha suaveolens | GB, VC62 North-east Yorkshire, Hutton le Hole | Noel Yvri Sandwith | | 18/9/1964 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Misterton | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/1918 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Misterton | Cecil Ivry Sandwith Noel Yvri Sandwith | | 2/9/1918 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Misterton | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/8/1939 | K |
| Galeopsis segetum | GB, VC56 Nottinghamshire, Everton Carr | Cecil Ivry Sandwith Noel Yvri Sandwith | | 30/8/1918 | K |
| Galeopsis versicolor | GB, VC56 Nottinghamshire, Everton Carr | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/8/1939 | K |
| Potamogeton gramineus | GB, VC56 Nottinghamshire, Everton Carr | Cecil Ivry Sandwith Noel Yvri Sandwith | Harold Stuart Thompson Arthur Bennett | 30/8/1918 | BIRM |
| Hypochaeris glabra | GB, VC56 Nottinghamshire, Everton | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/8/1939 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Clumber Park | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/9/1918 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Clumber Park | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/9/1918 | K |
| Scrophularia umbrosa | GB, VC55 Leicestershire, Exton | Noel Yvri Sandwith | | 25/6/1960 | K |
| Groenlandia densa | GB, VC54 North Lincolnshire, Haxey | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/1939 | K |
| Lamium purpureum var. hybridum | GB, VC54 North Lincolnshire, Epworth | Noel Yvri Sandwith | | 13/8/1939 | K |
| Thymus praecox subsp. arcticus | GB, VC52 Anglesey, South Stack | Noel Yvri Sandwith | | 1/7/1943 | K |
| Lamium maculatum | GB, VC50 Denbighshire, Llanshaiads | Noel Yvri Sandwith | Noel Yvri Sandwith | 8/7/1942 | K |
| Veronica agrestis | GB, VC48 Merionethshire, Tywyn, Broadwater | Noel Yvri Sandwith | | 14/8/1954 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC46 Cardiganshire, Mount | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/1932 | K |