Definitions

1. noun

A plant of the genus Conyza, especially Conyza canadensis, with clusters of small, white or pinkish flowers.

“The field was infested with horsebane, a common weed in the region.”

2. noun

A plant of the genus Hippocrepis, especially Hippocrepis comosa, with yellow flowers and pods.

“The horsebane in the meadow was in full bloom, attracting many bees.”