This is the largest herbarium at NTNU University Museum, containing around 240 000 specimens from Norway and the Nordic countries. Most of the specimens were collected in Central Norway. The vascular plant herbarium also contains around 32 000 specimens from the rest of the world, most of which is not yet digitized. The arctic collection contains professor Olav Gjørevoll's material from Alaska and Canada - about 6 000 digitized specimens.
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