Common Ragweed🌼

An annual herb in the daisy family, native to North America and naturalized in Japan. A major cause of autumn hay fever. The Japanese name 'Buta-kusa' is a direct translation of the English folk name 'Hog-weed'. Grows in dense colonies on vacant lots and riverbanks.

Identification Points

• ✓Leaves deeply pinnately lobed, resembling mugwort
• ✓Male flowers in spikes shed massive amounts of yellow pollen
• ✓Height 30 cm to 1 m

Morphological TraitsAI-estimated, needs verification

Phylogenetic Positionキク科 →