Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 116.

The Mountains [1], 07/07/1732, ¶602:

Birch trees, which are however rare, creep under the earth and only show the tips of their branches above ground to a height of no more than 6 inches. Sometimes they also have a fragile, gnarled trunk, likewise bent low.