| Mentha arvensis x aquatica = M. x verticillata | GB, VC22 Berkshire, Wytham | Noel Yvri Sandwith | | 27/8/1927 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC23 Oxfordshire, Oxford,Port Meadow | John Patrick Micklethwait Brenan Noel Yvri Sandwith | | 30/8/1941 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC28 West Norfolk, Ring Mere | Cecil Ivry Sandwith Noel Yvri Sandwith | Noel Yvri Sandwith | 21/8/1926 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC31 Huntingdonshire, Godmanchester | John Lester Gilbert Noel Yvri Sandwith | | 7/8/1960 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC34 West Gloucestershire, Symonds Yat | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 13/8/1933 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC34 West Gloucestershire, Symonds Yat | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 13/8/1933 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC34 West Gloucestershire, Golden Valley | Cecil Ivry Sandwith Noel Yvri Sandwith | | 11/9/1933 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC34 West Gloucestershire, Symonds Yat | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | J Fraser | 13/8/1933 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC42 Breconshire, Brecon | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 9/1932 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC46 Cardiganshire, Mount | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/9/1932 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC34 West Gloucestershire, Symonds Yat | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 13/8/1933 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC6,VC34, Bedminster | Cecil Ivry Sandwith Noel Yvri Sandwith | Noel Yvri Sandwith | 8/9/1930 | K |
| Mentha gentilis var. gracilis | GB, VC6 North Somerset, Sharpham Moor | Cecil Ivry Sandwith Noel Yvri Sandwith | | 13/9/1933 | K |
| Mentha piperita var. piperita | GB, VC6 North Somerset, Charterhouse on Mendip | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/8/1959 | K |
| Mentha piperita var. piperita | GB, VC6 North Somerset, Charterhouse on Mendip | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/8/1959 | K |
| Mentha piperita var. piperita | GB, VC8 South Wiltshire, Semley | Cecil Ivry Sandwith Noel Yvri Sandwith | | 14/9/1955 | K |
| Mentha spicata | GB, VC2 East Cornwall, Veryan | Cecil Ivry Sandwith Noel Yvri Sandwith | | 14/8/1934 | K |
| Mentha spicata | GB, VC6 North Somerset, Compton Dando | Noel Yvri Sandwith | | 11/9/1933 | K |
| Mentha spicata | GB, VC42 Breconshire, Llangorse Lake | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 10/9/1932 | K |
| Mentha spicata x longifolia = M. x villosonervata | GB, VC17 Surrey, Ham | John Lester Gilbert Noel Yvri Sandwith | | 31/7/1960 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC6 North Somerset, Compton Dando | Noel Yvri Sandwith | J Fraser | 11/9/1933 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC27 East Norfolk, Beeston Regis | Noel Yvri Sandwith | | 17/9/1962 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC29 Cambridgeshire, Linton | Noel Yvri Sandwith | | 8/8/1926 | K |
| Mentha spicata x suaveolens = M. x villosa var. nicholsoniana | GB, VC42 Breconshire, Brecon | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 10/9/1932 | K |
| Mentha suaveolens | GB, VC34 West Gloucestershire, Lydbrook, Worrall Hill | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 13/8/1933 | K |
| Mentha suaveolens | GB, VC41 Glamorganshire, Cardiff, Cardiff Docks | Cecil Ivry Sandwith Noel Yvri Sandwith | | 11/9/1936 | K |
| Mentha suaveolens | GB, VC45 Pembrokeshire, Marloes | Cecil Ivry Sandwith Noel Yvri Sandwith | | 6/9/1932 | K |
| Mentha suaveolens | GB, VC62 North-east Yorkshire, Hutton le Hole | Noel Yvri Sandwith | | 18/9/1964 | K |
| Mentha x piperita var. vulgaris | GB, VC6 North Somerset, Priddy | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/9/1923 | K |
| Mentha x piperita | GB, VC6 North Somerset, Weston in Gordano | Cecil I Sandwith Noel Yvri Sandwith | | 9/1920 | K |
| Mentha x verticillata var. rivalis | GB, VC15 East Kent, Dungeness | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 8/1932 | K |
| Mentha x verticillata var. rivalis | GB, VC15 East Kent, Dungeness | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 8/1932 | K |
| Meum athamanticum | GB, VC65 North-west Yorkshire | 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, Howgill | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/6/1934 | K |
| Meum athamanticum | GB, VC65 North-west Yorkshire, Howgill Fells | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/6/1934 | K |
| Misopates orontium | GB, VC22 Berkshire, Beenham | Noel Yvri Sandwith | | 22/8/1948 | K |
| Oenanthe fistulosa | GB, VC6 North Somerset, Catcott | Noel Yvri Sandwith | | 2/7/1963 | K |
| Oenanthe fistulosa | GB, VC6 North Somerset, Catcott | Noel Yvri Sandwith | | 29/7/1963 | K |
| Origanum vulgare subsp. hirtum | GB, VC34 West Gloucestershire, Symonds Yat | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 13/8/1933 | K |