milfoil

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Definitions from WordNet

Noun milfoil has 1 sense

yarrow, milfoil, Achillea millefolium - ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white florets; widely naturalized in North America
--₁ is a kind of achillea

Definitions from the Web

Milfoil

Noun - Botany: Milfoil refers to a common name for several species of flowering plants in the family Asteraceae, characterized by deeply divided fern-like leaves and small white or pink flowers. Some well-known milfoils include Achillea millefolium (common yarrow) and Myriophyllum spp. (water milfoils). Example: The milfoil plant is commonly used in herbal medicine for its medicinal properties. Noun - Aquatic: Milfoil also refers to an invasive aquatic plant, specifically Eurasian Watermilfoil (Myriophyllum spicatum), known for its long, slender stems and feathery underwater foliage. This plant can quickly take over waterways and disrupt ecosystems if left uncontrolled. Example: The divers worked tirelessly to remove the milfoil from the lake, preventing further spread of the invasive plant.