Al·fil·a·ri·a n. Bot. The pin grass (Erodium cicutarium), a weed in California.
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  Erodium cicutarium
       n : 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 [syn: redstem storksbill, alfilaria, alfileria,
            filaree, filaria, clocks, pin grass, pin clover]