Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 67.

Lycksele Lappmark, 30/05/1732, ¶272:

The pasture-land at the parsonage was rather poor though it was excellent only 1 3/4 miles away where, it is worth noting, the butter is yellower than in other places – it is quite reddish, in fact, or saffron yellow. I asked which plant was the most common among those that grow there and they described and named it. From their description I sketched ‘Melampyrum’ [Common Cow-wheat]. They said that that was the very plant and that it grows abundantly in the forest thereabouts.