Chaerophyllum tainturieri

Chaerophyllum tainturieri, known by the common names hairyfruit chervil and southern chervil, is an annual forb native to the south-eastern United States, with disjunct populations in Arizona and New Mexico. It is a common plant, found in glades, fields, and disturbed areas. It produces small white umbels of flowers in the spring. This species was the subject of a germination study, which revealed a new type of seed dormancy....read more on Wikipedia.