Persian Hogweed and Giant Hogweed comparison
Persian Hogweed Heracelum persicum and Giant Hogweed Heracelum mantegazzianum comparison with info on flower shape, umbel shape, and leaf differences
Natural History Illustration – for books, magazines & packaging
Persian Hogweed Heracelum persicum and Giant Hogweed Heracelum mantegazzianum comparison with info on flower shape, umbel shape, and leaf differences