Bitterweed – IUCN Conservation Status: Insufficient Data Bitterweeds are also known as sneezeweed Helenium amarum, commonly known as bitterweed, sneezeweed, or yellowdicks, is a flowering plant species native to North America, particularly found in the southeastern United States, although it is also found in Brazil, Europe, Japan, and Australia. Bitterweed is adaptable and grows in […]