Pin grass Meaning, Definition & Usage

1. noun European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up; often grown for forage
   filaria; alfileria; pin clover; clocks; redstem storksbill; Erodium cicutarium; alfilaria; filaree.
   

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