UL, CSA, ETL and CE: What They Mean. If you look on the back panel of Crown amplifiers or PIP modules, you will see a silk-screened certification mark or logo such as UL, CSA, ETL or CE. What do these certification marks mean? Basically they are stamps of approval.
Peony is a plant. The root and, less commonly, the flower and seed are used to make medicine. Peony is sometimes called red peony and white peony. This does not refer to the color of the flowers, which are pink, red, purple, or white, but to the color of the processed root. Peony is used for gout, osteoarthritis, fever, respiratory tract illnesses, and cough.
Peonies are literally in a class by themselves. That is to say that the flower is classified as its own species, paeonaceae, by botanists. The flower is named for the Roman physician Paeon, who was turned into a flower by Pluto to protect him from a jealous teacher. Romans believed that the flower could cure everything from a headache to convulsions. Peonies are known for their distinctive smell.