The main identifying features of C. tuberosus are the species' prominent hairs positioned on the lip of a petal (sometimes referred to as "the Beard") and the smell produced by the flower.[4]
Individuals have 1 (occasionally 2) linear basal leaves. Flowers are magenta to purple in color, and the middle petal is distinctively oblong-elliptic in shape.[5] The average maximum root depth has been found to be 7 centimeters (approximately 2.75 inches).
1 2 Justice, William S.; Bell, C. Ritchie; Lindsey, Anne H. (2005). Wild Flowers of North Carolina (2. printing.ed.). Chapel Hill, NC: Univ. of North Carolina Press. p.53. ISBN0807855979.
↑ Brackley, F. E. (1985). "The Orchids of New Hampshire." Rhodora 87(849): 1-117.
↑ Kartesz, John T. (2014). "Calopogontuberosus". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP).
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