stems and umbrella inflorescences of fading hogweed on sky background. dangerous plants are taller than a man

are background big bloom blossom botany burn capture clouds cow danger dangerous environment fading feedstuff flora floral flower flowering foliage giant growing harmful heracleum hogweed inflorescence inflorescences invasive landscape large leaf man mantegazzianum massive nature overgrown parsnip plant plants poison poisonous seed silhouette sky stem stems summer taller than thickets toxic umbelliferous umbrella weed wild wildlife