ARETHUSA (Arethusa bulbosa), a common North Ameri can plant of the orchis family, found in bogs and swampy regions during May and June from Newfoundland south to North Caro lina and west to Indiana and Minnesota. The flowers are magenta crimson, having a crest formed of three hairy ridges, white or yellow in colour, and with a lower lip spotted with magenta. They grow on single stalks sin. to loin. in height. The leaves appear of ter the flowers open and are long, narrow and single. The root is bulbous. A common name for arethusa is Indian pink.