giant dangerous allergic hogweed plant growing in the field. poisonous heracleum grass inflorescence. leaves and flowers

hogweed giant flower summer nature spring grass leaf floral green leaves plant growth field beautiful natural new ecology petal botany season herb foliage stem meadow wildflower branch weed perennial botanical poison inflorescence toxic blossom flora allergen poisonous danger invasive bloom heracleum blooming large alert burn dangerous deadly harmful sosnowsky wild