Pinus ponderosa, commonly known as the ponderosa pine, bull pine, blackjack pine,[1] or western yellow pine, is a very large pine tree species of variable habitat native to the western United States and Canada.
Achillea millefolium, known commonly as yarrow /?j‘ro?/ or common yarrow, is a flowering plant in the family Asteraceae. It is native to temperate regions of the Northern Hemisphere in Asia, Europe, and North America.