| Ajuga chamaepitys | GB, VC20 Hertfordshire, Hitchin,Wilbury Hill | Joseph Edward Little | George Claridge Druce Ida Margaret Hayward | 22/8/1912 | K |
| Atriplex | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Augustin Ley Ida Margaret Hayward | 19/8/1908 | BIRM |
| Carex leporina | GB, VC79,VC80, Tweedside | Ida Margaret Hayward | | 5/1917 | E |
| Carex muricata | GB, VC79 Selkirkshire, Tweedside | Ida Margaret Hayward | James Fraser | 13/9/1908 | E |
| Chelidonium majus var. laciniatum | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Augustin Ley Ida Margaret Hayward | 7/1908 | BIRM |
+ | Cochlearia officinalis | GB, VC82 East Lothian, Aberlady Bay | Ida Margaret Hayward | | 28/5/1908 | BIRM |
| Cochlearia pyrenaica subsp. alpina | GB, VC82 East Lothian, Aberlady Bay | Ida Margaret Hayward | Watson Botanical Exchange Club Ida Margaret Hayward William Robert Sherrin | 28/5/1908 | SLBI |
| Cochlearia pyrenaica subsp. alpina | GB, VC82 East Lothian, Aberlady Bay | Ida Margaret Hayward | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 28/5/1908 | BIRM |
| Cochlearia pyrenaica subsp. alpina | GB, VC82 East Lothian, Aberlady Bay | Ida Margaret Hayward | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 22/5/1908 | BIRM |
| Cotula australis | GB, VC80 Roxburghshire, Tweedside | Ida Margaret Hayward | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 8/1910 | BIRM |
| Cotula coronopifolia | GB, VC81 Berwickshire, River Tweed | Ida Margaret Hayward | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 24/7/1909 | BIRM |
| Crepis paludosa | GB, VC80 Roxburghshire, Melrose | Ida Margaret Hayward | Watson Botanical Exchange Club Ida Margaret Hayward William Robert Sherrin | 6/7/1908 | SLBI |
| Elodea canadensis | GB, VC68 North Northumberland, Twizel | Ida Margaret Hayward | Ida Margaret Hayward | 12/10/1915 | E |
| Elodea canadensis | GB, VC79 Selkirkshire, Clovenfords | Ida Margaret Hayward | Ida Margaret Hayward | | E |
| Elodea canadensis | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Ida Margaret Hayward | 20/9/1912 | E |
| Elodea canadensis | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Ida Margaret Hayward | 26/8/1909 | E |
| Euphorbia esula | GB, VC80 Roxburghshire, Melrose | Ida Margaret Hayward | Job Edward Lousley | 7/1926 | SLBI |
| Galeopsis angustifolia | GB, VC20 Hertfordshire, Hitchin | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little George Claridge Druce Ida Margaret Hayward | 28/8/1913 | K |
| Herniaria ciliolata | GB, VC1 West Cornwall, Lizard | Ness | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 2/9/1908 | BIRM |
| Hypericum humifusum | GB, VC80 Roxburghshire, Cauldshiels Loch | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Augustin Ley Ida Margaret Hayward | 25/9/1909 | BIRM |
| Hypericum maculatum subsp. obtusiusculum | GB, VC81 Berwickshire, Earlston | Ida Margaret Hayward | Botanical Exchange Club of The British Isles George Claridge Druce Job Edward Lousley | 1926 | SLBI |
+ | Impatiens glandulifera | GB, VC81 Berwickshire, Island in Tweed at junction of the Till | Ida Margaret Hayward | | 12/10/1915 | E |
+ | Impatiens glandulifera | GB, VC81 Berwickshire, Island in Tweed at junction of the Till | Ida Margaret Hayward | | 12/10/1915 | E |
+ | Impatiens glandulifera | GB, Berwick,Tweed Mill Islands at Tillmouth | Ida Margaret Hayward | | | OXF |
| Juncus bufonius | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 8/1909 | BIRM |
| Lepidium sativum | GB, VC79 Selkirkshire, Tweedside | Ida Margaret Hayward | Watson Botanical Exchange Club Augustin Ley Ida Margaret Hayward | 8/1908 | BIRM |
| Mentha aquatica x spicata = M. x piperita | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Druce Herbarium, Oxford | 1913 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Ettrick | Ida Margaret Hayward | Ida Margaret Hayward | 9/1909 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Ettrick | Ida Margaret Hayward | Botanical Exchange Club of The British Isles | 9/1909 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Druce Herbarium, Oxford | 1914 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Selkirk | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Ida Margaret Hayward | 9/1909 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Selkirk | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Augustin Ley Ida Margaret Hayward | 9/1909 | BIRM |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79,VC80, Lindean | Ida Margaret Hayward | Watson Botanical Exchange Club Ida Margaret Hayward | 7/1908 | CGE |
| Mentha spicata x suaveolens = M. x villosa | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Charles Edward Britton Ida Margaret Hayward | 8/1913 | K |
+ | Mentha spicata x suaveolens = M. x villosa | GB, VC79 Selkirkshire, Selkirk | Ida Margaret Hayward | Charles Bailey | 9/1909 | MANCH |
+ | Mentha suaveolens x longifolia = M. x rotundifolia | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Charles Bailey | 8/1918 | MANCH |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC79 Selkirkshire, Galashiels | George Claridge Druce Ida Margaret Hayward | | 8/1913 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Ida Margaret Hayward | 8/1913 | OXF |
| Plantago major subsp. intermedia | GB, VC79 Selkirkshire, Selkirk | Ida Margaret Hayward | Ida Margaret Hayward | 8/1913 | K |
| Plantago major subsp. major | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Botanical Exchange Club of The British Isles Ida Margaret Hayward | 8/1913 | K |