| Heavy metals distribution in soils surrounding an abandoned mine in NW Madrid (Spain) and their transference to wild flora E Moreno-Jiménez, JM Peñalosa, R Manzano, RO Carpena-Ruiz, ... Journal of hazardous materials 162 (2-3), 854-859, 2009 | 222 | 2009 |
| Mercury content in vegetation and soils of the Almadén mining area (Spain) R Millán, R Gamarra, T Schmid, MJ Sierra, AJ Quejido, DM Sánchez, ... Science of the Total Environment 368 (1), 79-87, 2006 | 188 | 2006 |
| Mercury bioaccumulation and phytotoxicity in two wild plant species of Almadén area E Moreno-Jiménez, R Gamarra, RO Carpena-Ruiz, R Millán, ... Chemosphere 63 (11), 1969-1973, 2006 | 158 | 2006 |
| Árboles y arbustos de la Península Ibérica e Islas Baleares P Galán Cela, R Gamarra Gamarra, JI García Viñas Ediciones Jaguar, 1998 | 55 | 1998 |
| Seed micromorphology in the genus Neotinea Rchb.f. (Orchidaceae, Orchidinae) R Gamarra, E Dorda, A Scrugli, P GalAN, E OrtUNEz Botanical journal of the Linnean Society 153 (2), 133-140, 2007 | 53 | 2007 |
| Rehabilitación de suelos contaminados con mercurio: estrategias aplicables en el área de Almadén R Millán, RO Carpena, T Schmid, MJ Sierra, E Moreno, J Peñalosa, ... Ecosistemas 16 (2), 2007 | 49 | 2007 |
| Anacamptis versus Orchis (Orchidaceae): seed micromorphology and its taxonomic significance R Gamarra, E Ortúñez, P Galán Cela, V Guadaño Plant systematics and evolution 298, 597-607, 2012 | 48 | 2012 |
| Seed micromorphology supports the splitting of Limnorchis from Platanthera (Orchidaceae) R Gamarra, P Galán, I Herrera, E Ortúñez Nordic Journal of Botany 26 (1‐2), 61-65, 2008 | 39 | 2008 |
| Seed micromorphology in Dactylorhiza Necker ex Nevski (Orchidaceae) and allied genera R Gamarra, P Galan, HA Pedersen, E Ortunez, E Sanz Turkish Journal of Botany 39 (2), 298-309, 2015 | 28 | 2015 |
| Hondurensis plantarum vascularium catalogus: Pteridophyta CHN Sutherland, RG Gamarra, JF Casas Cyanus, 1996 | 25 | 1996 |
| Seeds in subtribe Orchidinae (Orchidaceae): the best morphological tool to support molecular analyses R Gamarra, E Ortúñez, E Sanz, I Esparza, P Galán EUT Edizioni Università di Trieste, 2010 | 22 | 2010 |
| Tracking an invader to its origins: the invasion case history of Crupina vulgaris CT Roché, R Vilatersana, T Garnatje, R Gamarra, N Garcia‐Jacas, ... Weed Research 43 (3), 177-189, 2003 | 19 | 2003 |
| Seed micromorphology of orchidaceae in the Gulf of Guinea (West Tropical Africa) R Gamarra, E Ortúñez, P Galan Cela, Á Merencio Plant Systematics and Evolution 304 (5), 665-677, 2018 | 17 | 2018 |
| A study of seed micromorphology in the genus Ophrys (Orchidaceae) P Galán Cela, I Seligrat, E Ortúñez, R Gamarra, A Vivar Sanz, A Scrugli Anales del Jardín Botánico de Madrid 71 (2), 1-6, 2014 | 17 | 2014 |
| Asientos para un atlas corológico de la flora occidental, 25 R Gamarra, O Montouto Mapa 3, 1-3, 2002 | 17 | 2002 |
| Hondurensis plantarum vascularium catalagus. Pterydophyta C Nelson Sutherland, RG Gamarra, JF Casas Fontqueria 43, 1-223, 1996 | 15 | 1996 |
| Corología ibérica M Velayos, F Castilla, RG Gamarra Consejo Superior de Investigaciones Científicas. Real Jardín Botánico-ICYT, 1991 | 15 | 1991 |
| Mercury content in natural vegetation of three plots in the mining area of Almadén (Spain) R Millan, R Gamarra, T Schmid, R Vera, MJ Sierra, AJ Quejido, ... Materials and Geoenvironment 51, 155-158, 2004 | 14 | 2004 |
| Seed micromorphology in the iberian Orchidaceae. I. Subfamily Cypripedioideae E Ortúñez, E Dorda, P Galán, R Gamarra Bocconea 19, 271-274, 2006 | 13 | 2006 |
| Herbarium lagascanum J Fernández Casas, R Gamarra Fontqueria 36 (67), 108, 1993 | 12 | 1993 |
