4.23.12    What a difference a shower makes!  A few days ago when I visited this roadside plant, it was so covered in tan dust, it would have been difficult to discern the color of its blossoms.  The whorl of hooded flowers of the Wood-Betony, a.k.a. Lousewort, (Pedicularis canadensis) are yellow, reddish, or a combination of the two, above deeply toothed, hairy leaves.  One source reports that pedicularis comes from Latin pediculus, meaning "louse".  An Old-English belief was that cows that ate this plant became infested with lice.   I didn't take a chance on tasting it!