About Youngia japonica (L.) DC.
Youngia japonica (L.) DC. is an annual plant that produces yellow flowers. In tropical regions, it can bloom year-round, while in temperate regions, it blooms during late spring and early summer. Plant height varies widely, ranging from 10 to 150 cm (4 to 59 inches) based on growing conditions. Stems are usually solitary and erect. Its basal leaves are large and pinnately divided. The fruits of Youngia japonica are dispersed by wind. This species is native to eastern Asia, specifically China and Japan. It has since spread far beyond its native range, and now occurs as a non-native species almost globally. It can be found across Africa, Australia, Europe, North America, and South America. In the United States, it is spreading rapidly, though it is mostly restricted to areas in the Southeast. It grows well in habitats disturbed by human activity, and occurs in locations such as roadsides, cultivated fields, and lawns. In China, it grows in a wide variety of both natural and disturbed habitats. In the United States, it is documented as an invasive species that can penetrate intact natural communities.
