| Mentha spicata x longifolia = M. x villosonervata | IE, VCH39 Co. Antrim, Belfast | James Walter White | Botanical Exchange Club of The British Isles J Fraser | 12/8/1926 | K |
| Mentha spicata x longifolia = M. x villosonervata | IE, VCH39 Co. Antrim, Belfast | James Walter White | | 8/1926 | K |
| Mentha spicata x longifolia = M. x villosonervata | IE, VCH39 Co. Antrim, Belfast | Charles Edward Britton James Walter White | Botanical Exchange Club of The British Isles | 5/8/1926 | K |
| Plantago arenaria | IE, VCH39 Co. Antrim, Belfast | Edward Norman Carrothers | | 10/1933 | K |
| Pyrola media | IE, VCH39 Co. Antrim, Belfast | William Marsden Hind | George Cheetham Churchill | 31/7/1856 | K |
| Veronica peregrina | IE, VCH39 Co. Antrim, Belfast | William Marsden Hind | George Cheetham Churchill | 28/7/1856 | K |
| Lamium confertum | IE, VCH39 Co. Antrim, Ballygalley Head | | George Cheetham Churchill | 28/6/1866 | K |
| Dactylis glomerata | IE, VCH39 Co. Antrim, Ballycastle | Marian Muriel Whiting | | 20/6/1930 | K |
| Plantago maritima | IE, VCH39 Co. Antrim, Ballycastle | Marian Muriel Whiting | | 23/6/1930 | K |
| Thymus praecox subsp. arcticus | IE, VCH39 Co. Antrim, Ballycastle | Marian Muriel Whiting | | 20/6/1930 | K |
| Ajuga reptans | IE, VCH39 Co. Antrim, Antrim | Marian Muriel Whiting | | 20/6/1930 | K |
| Veronica chamaedrys | IE, VCH39 Co. Antrim, Antrim | Marian Muriel Whiting | | 18/6/1930 | K |
| Galeopsis tetrahit | IE, VCH38 Co. Down, Warrenpoint | George Valentine Chapman Last | George Valentine Chapman Last | 24/8/1895 | K |
| Glebionis segetum | IE, VCH38 Co. Down, Warrenpoint | George Valentine Chapman Last | | 24/8/1895 | K |
| Mentha aquatica | IE, VCH38 Co. Down, Warrenpoint | George Valentine Chapman Last | George Valentine Chapman Last | 19/8/1895 | K |
| Mentha suaveolens | IE, VCH38 Co. Down, Warrenpoint | George Valentine Chapman Last | George Valentine Chapman Last | 24/7/1895 | K |
| Scutellaria galericulata | IE, VCH38 Co. Down, Warrenpoint | George Valentine Chapman Last | George Valentine Chapman Last | 19/8/1895 | K |
| Habenaria viride | IE, VCH38 Co. Down, Strangford Lough | Robert Desmond Meikle | | 30/6/1947 | K |
| Mentha | IE, VCH38 Co. Down, Saul | Coslett Herbert Waddell | Coslett Herbert Waddell | 10/1894 | K |
| Mentha spicata x suaveolens = M. x villosa | IE, VCH38 Co. Down, Saul | Coslett Herbert Waddell | Coslett Herbert Waddell | 2/10/1894 | K |
| Mentha suaveolens | IE, VCH38 Co. Down, Saul | Robert Desmond Meikle | | 24/7/1949 | K |
| Scleranthus annuus | IE, VCH38 Co. Down, Saintfield | Coslett Herbert Waddell | Watson Botanical Exchange Club | 9/1903 | K |
| Veronica polita | IE, VCH38 Co. Down, Saint Johns Point | Robert Desmond Meikle | | 8/1957 | K |
| Digitalis purpurea | IE, VCH38 Co. Down, Rostrevor | Stella Ross-Craig | | | K |
| Glechoma hederacea | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/6/1952 | K |
| Linaria repens | IE, VCH38 Co. Down, Rostrevor | Daniel Oliver | | 1871 | K |
| Plantago maritima | IE, VCH38 Co. Down, Rostrevor | Stella Ross-Craig | | 20/6/1952 | K |
| Plantago maritima | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 20/6/1952 | K |
| Scrophularia nodosa | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/6/1952 | K |
| Scrophularia nodosa | IE, VCH38 Co. Down, Rostrevor | Stella Ross-Craig | | 25/6/1952 | K |
| Stachys sylvatica | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/6/1952 | K |
| Stachys sylvatica | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/6/1952 | K |
| Stachys sylvatica | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/6/1952 | K |
| Teucrium scorodonia | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 29/6/1952 | K |
| Teucrium scorodonia | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 29/6/1952 | K |
| Teucrium scorodonia | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 29/6/1952 | K |
| Teucrium scorodonia | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 29/6/1952 | K |
| Verbascum thapsus | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/6/1952 | K |
| Verbascum thapsus | IE, VCH38 Co. Down, Rostrevor | Joseph Robert Sealy Stella Ross-Craig | | 25/7/1952 | K |
| Veronica scutellata | IE, VCH38 Co. Down, Rostrevor | George Valentine Chapman Last | George Valentine Chapman Last | 19/8/1895 | K |