Data PolicyPublications | Institutes | Persons | Datasets | Projects | Maps [ report an error in this record ] Karlsson, Thomas Institute Expertise Thesaurus terms: Amelanchier; Euphrasia; Polygonum; Potentilla; Pteridium; Spiraea Taxonomic terms: [WoRMS]; Plantae [WoRMS] Swedish Museum of Natural History (NRM), more Direct contact at institute: E-mail: