"north-central-regional-plant-introduction-station" . "North Central Regional Plant Introduction Station"^^ . "http://www.ars.usda.gov/main/site_main.htm?modecode=50-30-10-00"^^ . "federal" . . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid1 .