Botrychium -Key to the Genus


Sterile portion of frond sessile, i.e., dividing immediately beyond the junction with the fertile portion and not separated from the junction by a stalk of its own, thin-textured, not overwintering, light green.


Sterile portion of frond with a distinct stalk of its own, diverging from the fertile portion near the base of the plant, overwintering, deep green year-round or becoming bronze in winter.