PeerJ Author 270 Points Contributions by role Author 270 Contributions by subject area Biodiversity Biogeography Ecology Plant Science Taxonomy Evolutionary Studies Molecular Biology Roger D Bull PeerJ Author Summary Biodiversity Biogeography Ecology Plant Science Taxonomy PeerJ Contributions Articles 2 September 28, 2022 A phylogenetic analysis of Bromus (Poaceae: Pooideae: Bromeae) based on nuclear ribosomal and plastid data, with a focus on Bromus sect. Bromus Akram Nasiri, Shahrokh Kazempour-Osaloo, Behnam Hamzehee, Roger D. Bull, Jeffery M. Saarela https://doi.org/10.7717/peerj.13884 PubMed 36193423 February 7, 2017 Vascular plant biodiversity of the lower Coppermine River valley and vicinity (Nunavut, Canada): an annotated checklist of an Arctic flora Jeffery M. Saarela, Paul C. Sokoloff, Roger D. Bull https://doi.org/10.7717/peerj.2835 PubMed 28194307