| Thymus praecox subsp. arcticus | GB, England | | George Cheetham Churchill | | K |
| Thymus praecox subsp. arcticus | GB, VC8 South Wiltshire, Winterslow | Charles Baron Clarke | | 1/7/1892 | K |
| Thymus praecox subsp. arcticus | GB, VC12 North Hampshire, Andover | Charles Baron Clarke | Charles Baron Clarke | 7/7/1900 | K |
| Thymus praecox subsp. arcticus | GB, VC12 North Hampshire, Andover | Charles Baron Clarke | | 8/7/1903 | K |
| Thymus praecox subsp. arcticus | GB, VC12 North Hampshire, Andover | Charles Baron Clarke | Charles Baron Clarke | 30/7/1864 | K |
| Thymus praecox subsp. arcticus | GB, VC11 South Hampshire, Hordle | Charles Baron Clarke | Charles Baron Clarke | 13/9/1892 | K |
| Thymus praecox subsp. arcticus | GB, VC92 South Aberdeenshire, Braemar | Alexander Croall | William Jackson Hooker | 25/7/1854 | K |
| Thymus praecox subsp. arcticus | GB, VC92 South Aberdeenshire, Braemar | Alexander Croall | Alexander Croall | 7/1854 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Dawlish Warren | Francis Morland Day | | 24/8/1936 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Dawlish Warren | Francis Morland Day | | 24/8/1936 | K |
| Thymus praecox subsp. arcticus | GB, VC112 Shetland, Balta Sound | Richard William George Dennis | | 23/8/1952 | K |
| Thymus praecox subsp. arcticus | GB, VC6 North Somerset, Walton in Gordano | Henry Francois Devis | | 15/7/1915 | K |
| Thymus praecox subsp. arcticus | GB, VC6 North Somerset, Asham Wood | Henry Francois Devis | | 29/6/1916 | K |
| Thymus praecox subsp. arcticus | GB, VC14 East Sussex, Beachy Head | Zahra Dickson | | 8/1936 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Jersey, Saint Ouen's | George Claridge Druce | George Claridge Druce | 8/1924 | K |
| Thymus praecox subsp. arcticus | GB, VC34 West Gloucestershire, Selsley Common | George Claridge Druce | Botanical Society & Exchange Club of The British Isles George Claridge Druce | 1/7/1931 | K |
| Thymus praecox subsp. arcticus | GB, VC110 Outer Hebrides, Harris | George Claridge Druce | | 7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC34 West Gloucestershire, Selsley Common | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Edward Britton | 1/7/1931 | K |
| Thymus praecox subsp. arcticus | GB, VC110 Outer Hebrides, Harris | George Claridge Druce | | 7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Slapton Ley | M E Edmonds | | 16/8/1932 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Maidencombe | M E Edmonds | | 21/7/1932 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Newton Abbot | M E Edmonds | | 23/7/1932 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Labrador | M E Edmonds | | 19/8/1932 | K |
| Thymus praecox subsp. arcticus | GB, VC4 North Devon, Wilsham | | J Fraser William Charles Barton | 28/8/1917 | K |
| Thymus praecox subsp. arcticus | GB, VC17 Surrey, Oxted | J Fraser | J Fraser | 24/6/1900 | K |
| Thymus praecox subsp. arcticus | GB, VC17 Surrey, Brockham | J Fraser | J Fraser | 15/7/1900 | K |
| Thymus praecox subsp. arcticus | GB, VC91 Kincardineshire, Knock Hill | J Fraser | J Fraser | 27/9/1888 | K |
| Thymus praecox subsp. arcticus | GB, VC45 Pembrokeshire, Saint Gowans Head | John Scott Lennox Gilmour | | 27/6/1939 | K |
| Thymus praecox subsp. arcticus | GB, VC112 Shetland, Foula Island | John R Gladstone | | 26/7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC110 Outer Hebrides, Saint Kilda | John R Gladstone | | 5/7/1927 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Little Sark | E A Golby Francis Ballard | | 10/9/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Sark | E A Golby Francis Ballard | | 8/6/1929 | K |
| Thymus praecox subsp. arcticus | GB, VC79 Selkirkshire, Thornielee | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Charles Edward Britton Ida Margaret Hayward | 29/6/1911 | K |
| Thymus praecox subsp. arcticus | GB, VC108 West Sutherland, Loch an Aigeil | Alastair Andrew Ross Henderson | Alastair Andrew Ross Henderson Murray Ross Henderson | 12/7/1955 | K |
| Thymus praecox subsp. arcticus | GB, VC49 Caernarvonshire, Snowdon summit | | William Jackson Hooker | 7/1824 | K |
| Thymus praecox subsp. arcticus | GB, VC55 Leicestershire, Rutland | Arthur Reginald Horwood | Arthur Reginald Horwood | 5/7/1916 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Vazon Bay, Guernsey | Albert Bruce Jackson | Albert Bruce Jackson | 31/7/1914 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Vazon Bay, Guernsey | Albert Bruce Jackson | Albert Bruce Jackson | 31/7/1914 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Guernsey,Vazon Bay | Albert Bruce Jackson | | 1912 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Guernsey,Vazon Bay | Albert Bruce Jackson | Albert Bruce Jackson | 1914 | K |