Noun has 1 sense

• pin clover(n = noun.plant) alfilaria, alfileria, clocks, erodium cicutarium, filaree, filaria, pin grass, redstem storksbill - 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;