Archaeologists have used wood taxa analysis to distinguish between imported, drift and native wood from five Norse farmsteads on Greenland.Historical records have long suggested that medieval Norse colonists on Greenland (AD 985–1450) relied on imported material such as iron and wood. Until now, it has not been fully recognized where these imports of wood came from...All sites were occupied between AD 1000 and 1400 and dated by radiocarbon dating and associated artifact types.A microscopic examination of the cellular structure of the wood previously found by archaeologists on these sites enabled the identification of tree genus or species, and the results...