Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 111.

Jokkmokk, 02/07/1732, ¶550:

I found here an abundance of ‘Tripolium pratense, corona calyci breviori’ or ‘Aster folio non acri; fl. purpureo’ [Blue Heabane]. NB. also the same with white flowers.