Definitions

1. noun

A plant of the genus Plantago, especially P. lanceolata, with a flat or cylindrical stem and small, whitish flowers.

“The stampweed in the field was a common sight during the summer.”

2. noun

Any of various plants that produce seeds that can be used to make a dye or a stamping ink.

“The old dye-maker relied on stampweeds for her unique dye colors.”