| Arabidopsis thaliana | IE, VCH20 Co. Wicklow, Newcastle | Micheline Joan Sheehy Skeffington Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 19/5/1979 | GALW |
| Arabis petraea | IE, VCH28 Co. Sligo, Benbulben | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 17/7/1979 | GALW |
| Barbarea vulgaris | IE, VCH20 Co. Wicklow, Wicklow | Micheline Joan Sheehy Skeffington Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 19/5/1979 | GALW |
| Barbarea vulgaris | IE, VCH21 Co. Dublin, kilternan | Peter Sherlock Wyse Jackson | | 9/1973 | GALW |
| Capsella bursa-pastoris | IE, VCH20 Co. Wicklow, Wicklow | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 19/5/1979 | GALW |
| Cardamine hirsuta | IE, VCH16 West Galway, Spiddal | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 18/4/1980 | GALW |
| Cardamine hirsuta | IE, VCH20 Co. Wicklow, Greystones | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 3/1980 | GALW |
| Cardamine hirsuta | IE, VCH20 Co. Wicklow, Greystones | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 3/1980 | GALW |
| Cardamine hirsuta | IE, VCH20 Co. Wicklow, Newcastle | Micheline Joan Sheehy Skeffington Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 19/5/1979 | GALW |
| Cardamine hirsuta | IE, VCH20 Co. Wicklow, Wicklow | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 19/5/1979 | GALW |
| Carex arenaria | IE, VCH9 Co. Clare, Liscannor | Peter Sherlock Wyse Jackson | Irish Biogeographical Society Trinity College, Dublin | 24/6/1979 | GALW |
| Carex hostiana x viridula = C. x fulva | IE, VCH9 Co. Clare, Mullagh More | Peter Sherlock Wyse Jackson | Irish Biogeographical Society Trinity College, Dublin | 19/6/1979 | GALW |
| Carex hostiana x viridula = C. x fulva | IE, VCH9 Co. Clare, Mullagh More | Peter Sherlock Wyse Jackson | Irish Biogeographical Society Trinity College, Dublin | 19/6/1979 | GALW |
| Cerastium fontanum | IE, VCH20 Co. Wicklow, Kilcoole | Peter Sherlock Wyse Jackson | Irish Biogeographical Society | 16/5/1979 | GALW |
| Cerastium fontanum | IE, VCH27 West Mayo, Bellacorick | Peter Sherlock Wyse Jackson | | 28/7/1980 | GALW |
| Cochlearia | IE, VCH35 West Donegal, Dungloe | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 13/7/1980 | GALW |
| Cochlearia anglica | IE, VCH4,VCH5, Tramore | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 28/6/1929 | GALW |
| Cochlearia anglica | IE, VCH6 Co. Waterford, River Blackwater | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 21/6/1980 | GALW |
| Cochlearia anglica | IE, VCH8 Co. Limerick, Limerick | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 10/6/1980 | GALW |
| Cochlearia anglica | IE, VCH40 Co. Londonderry, Lough Foyle | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 10/7/1980 | GALW |
| Cochlearia anglica x officinalis = C. x hollandica | IE, VCH6 Co. Waterford, Annestown | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 28/6/1979 | GALW |
| Cochlearia anglica x officinalis = C. x hollandica | IE, VCH6 Co. Waterford, County Waterford | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 28/6/1979 | GALW |
| Cochlearia anglica x officinalis = C. x hollandica | IE, East Galway, Oranmore | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 14/7/1979 | GALW |
| Cochlearia anglica x officinalis = C. x hollandica | IE, VCH28 Co. Sligo, Ballysadare Bay | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 10/7/1979 | GALW |
| Cochlearia danica | IE, VCH16 West Galway, Spiddal | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 18/4/1980 | GALW |
| Cochlearia danica | IE, VCH20 Co. Wicklow, Kilcoole | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 19/5/1979 | GALW |
| Cochlearia danica | IE, VCH21 Co. Dublin, Dublin | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 9/5/1980 | GALW |
| Cochlearia officinalis | IE, VCH20 Co. Wicklow, Greystones | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 6/1979 | GALW |
| Cochlearia officinalis | IE, VCH20 Co. Wicklow, Wicklow | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 19/5/1979 | GALW |
| Cochlearia officinalis | IE, VCH21 Co. Dublin, Donabate | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 3/6/1979 | GALW |
| Cochlearia officinalis | IE, VCH21 Co. Dublin, Sutton | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 26/8/1979 | GALW |
| Cochlearia officinalis | IE, VCH35 West Donegal, Dungloe | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 13/7/1980 | GALW |
| Cochlearia officinalis | IE, VCH39 Co. Antrim, Giants Causeway | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 9/7/1980 | GALW |
| Cochlearia officinalis | IE, VCH39 Co. Antrim, Torr Head | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 9/7/1980 | GALW |
| Cochlearia officinalis subsp. scotica | IE, VCH9 Co. Clare, Ballyvaghan | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 22/6/1979 | GALW |
| Cochlearia officinalis subsp. scotica | IE, VCH39 Co. Antrim, Cushendun | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 8/7/1980 | GALW |
| Cochlearia pyrenaica subsp. alpina | IE, VCH7,VCH8, Lough Curra | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 16/8/1929 | GALW |
| Cochlearia pyrenaica subsp. alpina | IE, VCH1 South Kerry, Lough Googh | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 17/6/1980 | GALW |
| Cochlearia scotica | IE, VCH35 West Donegal, Dungloe | Peter Sherlock Wyse Jackson | Trinity College, Dublin | 13/7/1980 | GALW |
| Crithmum maritimum | IE, Kerry, Derrymore | Peter Sherlock Wyse Jackson | | 2/9/1980 | GALW |