| Encyclopedia of islands RG Gillespie, D Clague Univ of California Press, 2009 | 206 | 2009 |
| Best practice guidance for habitat survey and mapping GF Smith, P O’Donoghue, K O’Hora, E Delaney Heritage Council, Kilkenny, 2011 | 96 | 2011 |
| In vitro conservation of European bryophytes JK Rowntree, S Pressel, MM Ramsay, A Sabovljevic, M Sabovljevic In Vitro Cellular & Developmental Biology-Plant 47, 55-64, 2011 | 65 | 2011 |
| Conservation genetics and ecology of Angiopteris chauliodonta Copel.(Marattiaceae), a critically endangered fern from Pitcairn Island, South Central Pacific Ocean N Kingston, S Waldren, N Smyth Biological Conservation 117 (3), 309-319, 2004 | 58 | 2004 |
| State of the world's plants RB Gardens Royal Botanic Gardens, 2016 | 42* | 2016 |
| Conservation status of plants in the Caribbean Island Biodiversity Hotspot CW Torres-Santana, E Santiago-Valentín, ÁT Leiva Sánchez, B Peguero, ... Proceedings of the Fourth Global Botanic Gardens Congress, vol. 4, pp. 1-15, 2010 | 11 | 2010 |
| Monitoring methods for the Killarney fern (Trichomanes speciosum Willd.) in Ireland D Ní Dhúill, E., Smyth, N., Waldren, S. & Lynn Irish Wildlife Manuals 82 (82), 1-100, 2015 | 6* | 2015 |
| Genetic variation in the Red-Listed moss Ditrichum cornubicum Paton (Ditrichaceae) and implications for its conservation C Campbell, DL Kelly, N Smyth, N Lockhart, DT Holyoak Journal of Bryology 39 (2), 141-151, 2017 | 5 | 2017 |
| Implementing target 10 of the Global Strategy for Plant Conservation at the National Botanic Gardens of Ireland: Managing two invasive non-native species for plant diversity in … N Smyth Sibbaldia: the International Journal of Botanic Garden Horticulture, 125-142, 2013 | 4 | 2013 |
| Integrated plant conservation on Pitcairn Island, south-central Pacific Ocean S Waldren, N Kingston, N Smyth, J Warren, C Warren BG Journal 2, 22-24, 2005 | 3 | 2005 |
| Investigation of the Copper Requirements of the Metallophyte Liverworts Cephaloziella nicholsonii Douin and C. massalongoi (Spruce) Müll.Frib C Campbell, DL Kelly, N Smyth, N Lockhart, DT Holyoak, D Long Plants 12 (12), 2265, 2023 | 2 | 2023 |
| Conservation assessment and monitoring methods for the Annex V clubmoss group (Lycopodium spp.) in Ireland D Smyth, N., Nienhuis, C., Muldoon, C. & Lynn Irish Wildlife Manuals 86 (86), 1-200, 2015 | 2* | 2015 |
| Invasive alien species: the urban dimension: case studies on strengthening local action in Europe A Pancucci-Papadopoulou, BS Galil, BJ Hutinec, N Smyth IUCN European Union Representative Office, 2013 | 2 | 2013 |
| Control of Hottentot Fig (Carpobrotus edulis) on Howth Head, Dublin. N Smyth Invasive alien species: the urban dimension, Case studies on strengthening …, 2013 | 2 | 2013 |
| The status of plant conservation on the Macaronesian archipelagos. J Caujapé-Castells, A Santos-Guerra, R Jardim, L Gouveia, J Melo, ... | 2 | 2010 |
| Historical Grassland Turboveg Database Project. 2067 Relevés recorded by Dr Austin O’Sullivan 1962–1982 D Bourke, T Hochstrasser, S Nolan, RP Schulte Teagasc, 2007 | 2 | 2007 |
| Plant conservation activities on Pitcairn Island. Flora English Nature. Summer 2004:14-15. C Waldren, S., Kingston, N., Smyth, N., Warren, J. & Warren Flora English Nature, 14-15, 2004 | 2* | 2004 |
| Invasive species mapping on Howth, Co. Dublin E Ní Dhúill, N Smyth Fingal County Council, 2018 | 1 | 2018 |
| Invasive species control Case Study: Hottentot fig (Carpobrotus edulis) control in Ireland. N Smyth, M Jebb, A Booth Conserving Farmland Biodiversity, 17, 2011 | 1 | 2011 |
| 694. Abutilon pitcairnense N Smyth, S Waldren, N Kingston Curtis's botanical magazine 27 (4), 355-364, 2010 | 1 | 2010 |
