die heilpflanze grindelie - the herbal plant gumweed

grindelia flower yellow plant blossom nature herb botany bright wildflower garden summer perennial meadow environment beauty leaf sunflower bud medicine family stamen sticky inflorescence outdoors small biennial season dermatitis freshness grass humidity head flowering growth hairy prairie sunlight wax bush herbarium multi colored pattern sap vibrant color sunny photography horticulture pollen pistil die heilpflanze grindelie herbal gumweed curlycup close-up medicinal treat illnesses bronchitis blooming squarrosa flowers day