Definitions

1. noun

A plant of the genus Phyla, especially Phyla nodiflora, having small white flowers and a weedy habit.

“The field was overgrown with various types of weeds, including a patch of pigeonweed near the old fence.”

2. noun

A plant of the genus Rivina, especially Rivina humilis, that has small red berries and a weedy habit.

“In some regions, pigeonweed is considered a nuisance due to its rapid spread and potential toxicity.”