yellow flowering tansy ragwort or jacobaea vulgaris plants with striking red stems

asteraceae banks benweed biodiversity bloom blossom blossoming bright brown cankerwort closeup colorful common dog dutch field flora flowers foreground green hearted jacobaea james macro nanny nature outdoors plant poisonous ragwort red reserve senecio spring staggerwort stammerwort standard stems stinking summer tansy variety vulgaris water weed wild wildflower willie wort yellow