Methylene Blue, methylthionine chloride or 3,7-bis(dimethylamino)phenothiazin-5-ium chloride is a chemical compound used as a dye and medication for Gram's stain, Wright stain[?], and the treatment of metoxyhemoglobinemia.
... (Vitis thunbergii) make their appearance. The underwoods abound in berry-bearing plants (e.g. cloudberry, cranberry, crowberry, red whortleberry), berried elder ...