heracleum sosnovskyi big poison plant blooming. medicinal plant common hogweed heracleum sphondylium

plant heracleum blooming hogweed poison flora natural blossom green white nature summer flower botany poisonous parsnip allergen bloom large harmful dangerous giant wild background danger toxic spring wildflower herb season leaf umbrella environment macro meadow homeopathy cartwheelflower wide botanic wildflowers garden invasive species phototoxic beautiful ecology herbal park sosnovskyi big blooming medicinal common sphondylium