| Thymus praecox subsp. arcticus | GB, VC110 Outer Hebrides, Clachan | | | 17/7/1961 | K |
| Thymus praecox subsp. arcticus | GB, Suffolk, Eriswell | Christopher Donald Pigott | Botanical Society of The British Isles Cambridge University | 7/1951 | K |
| Thymus praecox subsp. arcticus | GB, VC29 Cambridgeshire, Gog Magog Hills | William Thomas Stearn | Cambridge University | 4/7/1932 | K |
| Thymus praecox subsp. arcticus | GB, VC41 Glamorganshire, Barry Island | Arthur Edward Wade | National Museum of Wales | 7/1920 | K |
| Thymus praecox subsp. arcticus | GB, VC83 Midlothian, Edinburgh | Wilson | Shrewsbury Public Library | | K |
| Thymus praecox subsp. arcticus | IE, VCH18,VCH25, Clonmacnoise | David Allardice Webb | Trinity College, Dublin | 30/7/1951 | K |
| Thymus praecox subsp. arcticus | IE, VCH38 Co. Down, Orlock Point | Coslett Herbert Waddell | Watson Botanical Exchange Club Albert Bruce Jackson Coslett Herbert Waddell | 8/1909 | K |
| Thymus praecox subsp. arcticus | GB, Wiltshire | Richard Chandler Alexander Prior | | | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Sark, Pilcher Monument | E Ballard Francis Ballard | | 12/7/1930 | K |
| Thymus praecox subsp. arcticus | GB, VC9 Dorset, Dragon's Hill | E Ballard Francis Ballard | | 8/9/1931 | K |
| Thymus praecox subsp. arcticus | GB, VC113 Channel Islands, Sark, Pilcher Monument | E Ballard Francis Ballard | | 12/7/1930 | K |
| Thymus praecox subsp. arcticus | GB, VC10 Isle of Wight, Freshwater | William Charles Barton | Albert Bruce Jackson William Charles Barton | 14/9/1916 | K |
| Thymus praecox subsp. arcticus | GB, VC36 Herefordshire, Wigmore | | George Bentham | 9/7/1850 | K |
| Thymus praecox subsp. arcticus | GB, VC14 East Sussex, Seaford | Irene Blewett | | 23/6/1956 | K |
| Thymus praecox subsp. arcticus | IE, VCH34,VCH40, Magilligan Point | Norman Douglas Simpson | John Patrick Micklethwait Brenan | 6/8/1938 | K |
| Thymus praecox subsp. arcticus | GB, VC57 Derbyshire, Matlock Bath | James Britten | | 7/1870 | K |
| Thymus praecox subsp. arcticus | GB, VC17 Surrey, Warlingham | Charles Edward Britton | Charles Edward Britton | 21/6/1933 | K |
| Thymus praecox subsp. arcticus | GB, VC17 Surrey, Abinger | Charles Edward Britton | Charles Edward Britton | 3/7/1910 | K |
| Thymus praecox subsp. arcticus | GB, VC17 Surrey, Hackhurst Downs | Charles Edward Britton | Charles Edward Britton | 3/8/1910 | K |
| Thymus praecox subsp. arcticus | GB, VC17 Surrey, Walton Heath | Charles Edward Britton | Charles Edward Britton | 19/6/1927 | K |
| Thymus praecox subsp. arcticus | GB, VC48 Merionethshire, Fairbourne | Charles Edward Britton | Botanical Exchange Club of The British Isles Charles Edward Britton William Charles Barton | 4/8/1915 | K |
| Thymus praecox subsp. arcticus | GB, VC1 West Cornwall, Hayle | Arthur Allman Bullock | | 11/6/1933 | K |
| Thymus praecox subsp. arcticus | GB, VC1 West Cornwall, Porthtowan | W E Bunney | | 7/8/1924 | K |
| Thymus praecox subsp. arcticus | IE, VCH9 Co. Clare, Ballyvaghan | H M Burkill | | 20/8/1958 | K |
| Thymus praecox subsp. arcticus | GB, VC90 Angus, Glen Dole | Isaac Henry Burkill | | 10/7/1896 | K |
| Thymus praecox subsp. arcticus | IE, VCH1 South Kerry, Ventry Harbour | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 28/6/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH2 North Kerry, Killarney, Muckross | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 14/7/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH2 North Kerry, Muckross | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 14/7/1938 | K |
| Thymus praecox subsp. arcticus | GB, VC70 Cumberland, Borrowdale | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 10/7/1947 | K |
| Thymus praecox subsp. arcticus | IE, Kerry, Caherbla | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 8/7/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH2 North Kerry, Muckross | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 29/8/1935 | K |
| Thymus praecox subsp. arcticus | IE, VCH1 South Kerry, Cummeenduff Glen | Brian Lawrence Burtt Stella Ross-Craig | | 19/6/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH2 North Kerry, Muckross House | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 29/8/1935 | K |
| Thymus praecox subsp. arcticus | IE, VCH1 South Kerry, Cummeenduff Glen | Brian Lawrence Burtt Stella Ross-Craig | | 19/6/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH1 South Kerry, Cummeenduff Glen | Brian Lawrence Burtt Stella Ross-Craig | | 19/6/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH1 South Kerry, Ventry Harbour | Brian Lawrence Burtt Joseph Robert Sealy Stella Ross-Craig | | 28/6/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH1 South Kerry, Cummeenduff Glen | Brian Lawrence Burtt Stella Ross-Craig | | 19/6/1938 | K |
| Thymus praecox subsp. arcticus | IE, VCH33 Fermanagh, Lattone Lough | Edward Norman Carrothers | | 12/7/1948 | K |
| Thymus praecox subsp. arcticus | GB, VC46 Cardiganshire, Wallog | Arthur H Carter Horace M Montford William Bertram Turrill | | 12/7/1930 | K |
| Thymus praecox subsp. arcticus | IE, VCH9 Co. Clare, Ballyvaughan | | George Cheetham Churchill | 25/8/1865 | K |