Definitions

1. noun

A plant of the genus Eutrochium, having small white or pinkish flowers and a tall stem with a tuft of fibrous leaves.

“The meadow was filled with hempweed and other wildflowers.”

2. noun

Any of various plants of the genus Cannabis, especially Cannabis sativa, having fibrous stalks and seeds that produce hemp.

“The hempweed plant was used for its versatile fibres and medicinal properties.”