Equisetum hyemale subsp. affine (Engelm.) Calder & Taylor
Equisetaceae
Donald E. Culwell
6211
1993-02-28
February 28, 1993
United States, Arkansas, Stone, Ozark National Forest approximately 8 mi. NW of Mountain View along Sylamore Creek just North of Blanchard Springs. TRS: T16N R11W S32 SW4
Sandy bottomland soil along creek beside an old field.