knotgrass

knotgrass Definition

knot·grass (nät′gras′)

noun

any of several weedy plants (genus Polygonum) of the buckwheat family; esp., a common weed (P. aviculare) with slender stems, narrow leaves, and small axillary flowers
☆ a creeping grass (Paspalum distichum) growing in wet places in the S U.S.

knotgrass Usage Examples

Modifies a noun

seed: Persistence and Spread: The life span of knotgrass seeds in dry-storage was less than 15 years.

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