Populations of the common grass-pink orchid, a variety of the tuberosus species are native to North America in an area bounded by Minnesota, east to Newfoundland, south to Florida, and west to Texas. Largest of the five Calopogon species, this 10 to 30 inches tall orchid is terrestrial and has one to five slender, ribbed leaves. During the flowering season, the plant is adorned by three to 25 successively opening, faintly fragrant flowers that measure one to 1.5 inches wide. Flower color ranges from deep pink to white with a golden crest on the lip. Plants flower over an extended period of time with only a few flowers open at once. The common grass-pink flowers from March in southern Florida to August in the north.