(Technically it was hemp, the other variety of the cannabis sativa plant that can’t get you high. But that distinction is usually lost on all the annoying stoners who love to philosophize in college dorms about how legalizing hemp would renew our nation’s agriculture, fix our tax base, and, like, George Washington totally grew it, too. This one’s for them.) Hemp advocates, who feel that the government has wrongly banned the cultivation of their beloved plant, have a new patron saint: Agriculture Department botanist Lyster Dewey. The Washington Post reports that Dewey tended “Uncle Sam’s hemp farm” on a plot…