| Ophrys: the bee orchids of Europe HÆ Pedersen, N Faurholdt Royal Botanic Gardens, 2007 | 138 | 2007 |
| Genetic variation in three species of Epipactis (Orchidaceae): geographic scale and evolutionary inferences BK EHLERS, H PEDERSEN Biological Journal of the Linnean Society 69 (3), 411-430, 2000 | 75 | 2000 |
| Species concept and guidelines for infraspecific taxonomic ranking in Dactylorhiza (Orchidaceae) HÆ Pedersen Nordic Journal of Botany 18 (3), 289-310, 1998 | 72 | 1998 |
| Genetic diversity in Cypripedium calceolus (Orchidaceae) with a focus on north-western Europe, as revealed by plastid DNA length polymorphisms MF Fay, R Bone, P Cook, I Kahandawala, J Greensmith, S Harris, ... Annals of Botany 104, 517-525, 2009 | 71 | 2009 |
| Systematics and evolution of the Dactylorhiza romana/sambucina polyploid complex (Orchidaceae) H PEDERSEN Botanical Journal of the Linnean Society 152 (4), 405-434, 2006 | 43 | 2006 |
| Field guide to the orchids of Europe and the Mediterranean R Kühn, HÆ Pedersen, P Cribb | 42 | 2019 |
| Patterns of polyploid evolution in Greek marsh orchids (Dactylorhiza; Orchidaceae) as revealed by allozymes, AFLPs, and plastid DNA data M Hedrén, S Nordström, HAP Hovmalm, HÆ Pedersen, S Hansson American Journal of Botany 94 (7), 1205-1218, 2007 | 42 | 2007 |
| Local evolution of obligate autogamy inEpipactis helleborine subsp. neerlandica (Orchidaceae) HÆ Pedersen, BK Ehlers Plant Systematics and Evolution 223 (3-4), 173-183, 2000 | 40 | 2000 |
| A novel technique for determination of the fructose, glucose and sucrose distribution in nectar from orchids by HPLC-ELSD DN Lindqvist, HÆ Pedersen, LH Rasmussen Journal of Chromatography B 1081, 126-130, 2018 | 34 | 2018 |
| Additions to the orchid flora of Laos and taxonomic notes on orchids of the Indo-Burma region P Kumar, SW Gale, HÆ Pedersen, T Phaxaysombath, S Bouamanivong, ... Taiwania 63, 61-83, 2018 | 34 | 2018 |
| Phylogenetics and systematics of Eria and related genera (Orchidaceae: Podochileae) YP Ng, A Schuiteman, HÆ Pedersen, G Petersen, S Watthana, O Seberg, ... Botanical Journal of the Linnean Society 186, 179-201, 2018 | 33 | 2018 |
| Allozyme variation and genetic integrity of Dactylorhiza incarnata (Orchidaceae) HÆ Pedersen Nordic Journal of Botany 18 (1), 15-21, 1998 | 31 | 1998 |
| Seed micromorphology in Dactylorhiza Necker ex Nevski (Orchidaceae) and allied genera R Gamarra, P Galán, HÆ Pedersen, E Ortúñez, E Sanz Turkish Journal of Botany 39 (2), 298-309, 2015 | 28 | 2015 |
| Genetic diversity, compatibility patterns and seed quality in isolated populations of Cypripedium calceolus (Orchidaceae) HÆ Pedersen, HN Rasmussen, IM Kahandawala, MF Fay Conservation Genetics 13, 89-98, 2012 | 28 | 2012 |
| Dactylorhiza majalis sl (Orchidaceae) in acid habitats: variation patterns, taxonomy, and evolution HÆ Pedersen Nordic Journal of Botany 22 (6), 641-658, 2002 | 27 | 2002 |
| Species delimitation and recognition in the Brachycorythis helferi complex (Orchidaceae) resolved by multivariate morphometric analysis H PEDERSEN Botanical Journal of the Linnean Society 162 (1), 64-76, 2010 | 25 | 2010 |
| PESI-a taxonomic backbone for Europe Y de Jong, J Kouwenberg, L Boumans, C Hussey, R Hyam, N Nicolson, ... Biodiversity data journal, 2015 | 24 | 2015 |
| Anthecological observations on Dendrochilum longibracteatum - a species pollinated by facultatively anthophilous insects HA Pedersen Lindleyana 10, 19-28, 1995 | 24 | 1995 |
| Orchids in the torrent: on the circumscription, conservation and rheophytic habit of Epipactis flava H Pedersen, S Watthana, KO Srimuang Botanical Journal of the Linnean Society 172 (3), 358-370, 2013 | 23 | 2013 |
| A new species of Lecanorchis (Orchidaceae) from Thailand S Suddee, HÆ Pedersen Taiwania 56, 37-41, 2011 | 22 | 2011 |
Gitte PetersenAssociate Professor, Stockholm UniversityVerified email at su.se
