What is "horsefly weed"

n. much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida [syn: indigo broom, rattle weed, Baptisia tinctoria]

Horsefly weed, horsefly-weed, or horseflyweed is a common name for several plants, and may refer to:

• Baptisia australis, native to central and eastern United States
• Baptisia tinctoria, native to the eastern United States