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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Houston, J.D. | 1925 | Bird's nest orchid | Journal | Ir. Nat. J. | Details... |
| Howarth, S.E. & Williams, J.T. | 1968 | Biological Flora of the British Isles no. Chrysanthemum leucanthemum L. | Journal | J. Ecol. | Details... |
| Howarth, S.E. & Williams, J.T. | 1972 | Biological Flora of the British Isles no. Chrysanthemum segetum L. | Journal | J. Ecol. | Details... |
| Howe, H.F. & Smallwood, J. | 1982 | Ecology of seed dispersal | Journal | Annu. Rev. Ecol. Syst. | Details... |
| Hubbard, C.E. | 1968 | Grasses: a guide to their structure, identification, uses and distribution in the British Isles | Book | | Details... |
| Hubbard, C.E. | 1984 | Grasses: a guide to their structure, identification, uses and distribution in the British Isles (revised by J.C.E.Hubbard) | Book | | Details... |
| Hudson, H.J. | 1943 | Cephalanthera ensifolia in West Mayo | Journal | Ir. Nat. J. | Details... |
| Hudson, H.J. | 1957 | Changes in Dublin's flora | Journal | Ir. Nat. J. | Details... |
| Hudson, H.J. | 1975 | Plant notes from some Irish counties | Journal | Ir. Nat. J. | Details... |
| Huggard, L. | 1924 | Galium uliginosum in Co. Wexford | Journal | Ir. Nat. | Details... |
| Hull, R. | 1961 | Variation in populations of Bellis perennis L. | Journal | Proc. BSBI | Details... |
| Hulme, P.D., Simms, M. & Giavarini, V.J. | 2004 | Bryophyte and Lichen surveys along a stretch of the Owennafeana River, County Kerry, Ireland. A report for Shawater Ltd. | Report | | Details... |
| Hulten, E. | 1950 | Atlas of the distribution of vascular plants in north-west Europe | Book | | Details... |
| Hulten, E. | 1958 | The amphi-Atlantic plants and their phytogeographical connections Kungl. Svenska Vetenskapsakademiens Handlingar Fjarde Serien. Band 7. Nr. 1. | Book | | Details... |
| Hulten, E. | 1962 | The circumpolar plants 1: Vascular cryptogams, conifers and monocotyledons. Kungliga Svenska Vetenskapakademiens Handlingar, Ser 4,8: (5) | Book | | Details... |
| Hulten, E. | 1971 | The circumpolar plants 2: Dicotyledons. Kungl. Svenska Vetenskapsakademiens Handlingar Fjarde Serien. Band 13. Nr. 1. | Book | | Details... |
| Hulten, E. & Fries, M. | 1986 | Atlas of North European vascular plants: north of the Tropic of Cancer I - III | Book | | Details... |
| Hultgard, U.-M. | 1987 | Parnassia palustris L. in Scandinavia | Journal | Symb. Bot. Upsal. | Details... |
| Hume, L.J., West, C.J. & Watts, H.M. | 1995 | Nutritional requirements of Clematis vitalba L. (Old Man's Beard) | Journal | N. Z. J. Bot. | Details... |
| Humphreys, J., Culleton, N., Jansen, T., O'Riordan, E.G. & Storey, T. | 1997 | Aspects of the role of cattle slurry in dispersal and seedling establishment of Rumex obtusifolius seed in grassland | Journal | Ir. J. Agr. Food Res. | Details... |
5058 references found.