forest hillside covered in wild arrowleaf balsamroot yellow flowers

america april arrowleaf aster balsamorhiza balsamroot beautiful bloom blooming blossom blue british canada columbia countryside covered drought field flora flower flowers forest grass green herb herbal hillside landscape meadow medicinal mountain native nature north northwest okanagan oliver outdoors pacific perennial pine plant ponderosa rural sagittata sky south spring sunflower taproot tolerant trees valley wild yellow