Cystopteris protrusa (Weath.) Blasdell [ Cystopteris fragilis variety protrusa Weath.]
      
no HD illustration available (m3)
20__0_432665 Cystopteris fragilis test 18 Dryopteridaceae
D.S. Correll, H.B. Correll, Aquatic Wetl. Pl. SW U.S.: , fig. 19.4-5b (1972) [J.W. Roller]