nettle-leaf giant hyssop vs nettle-leaved horsemint

nettle-leaf giant hyssop

noun

  • An aromatic herb of the western US in the mint family (Agastache urticifolia), used medicinally by the American Indians. 

nettle-leaved horsemint

noun

  • An aromatic herb of the western US in the mint family, Agastache urticifolia, used medicinally by the American Indians. 

How often have the words nettle-leaf giant hyssop and nettle-leaved horsemint occurred in a corpus of books? (source: Google Ngram Viewer )