This species was once classified as Amerorchis. It is closely related to the European genus Orchis and was once classified as part of that genus. Under either name, it is the only such species in the North America. It does not, however, grow in Washington, though it grows in Idaho and Montana and other northern states further east. It is not a large plant, growing to 20 cm tall with 1.5 cm flowers. Where it is found, however, it often grows in profusion, carpeting the ground. We have been in places where it grows so thickly it is difficult to walk without stepping on plants. It has a number of different color forms one of which we found this summer and which will be the subject of a future post.