. . "*Lythrum petiolatum (L.)" . . . . . . . . "*Cuphea petiolata (L.) Koehne)" . "Cuphea viscosissima, also known as blue waxweed, clammy cuphea or (ambiguously) as \"tarweed\", is a plant native to the United States. It is a potential source of edible oil for humans."@en . "*Parsonsia petiolata (L.) Rusby)" . .