a close up of bright yellow flowers of the jacobaea vulgaris

asteraceae background benweed bloom blooming blossom botanical botany bright bush cankerwort close closeup common detail field flora flower flowers grow herb invasive jacobaea jakobaea jameswort leaf macro meadow medicinal natural nature outdoor outdoors pasture petal petals plant poisonous ragweed ragwort seeds senecio staggerwort stamen stinking tansy top toxic view vulgaris weed wild wildflower wildlife willie yellow