sosnowsky's hogweed (heracleum sosnowskyi) is a dangerous herbaceous flowering plant

alert allergen allergic bloom blue botanical burn bush danger dangerous deadly ecology europe flora floral flower foliage furanocoumarin giant grass green growth harmful heracleum sosnowskyi herb hogweed inflorescence intense large leaf meadow nature outdoor parsnip perennial plant poisonous sky sosnowsky sosnowskys stem summer sunlight toxic uncultivated weed white wildflower