Botrychium simplex

Botrychium simplex, the little grapefern, is a species of fern in the family Ophioglossaceae that is native to North America and Greenland. It is a perennial.

Taxonomy

Botrychium simplex was first described by Edward Hitchcock in 1823, based on material from Conway, Massachusetts.

Conservation

It is listed as a special concern species in Connecticut and is believed extirpated. It is endangered in Illinois, Indiana, and Ohio. It is listed as endangered and extirpated in Maryland, threatened in Iowa, exploitably vulnerable in New York, special concern in Rhode Island, and sensitive in Washington.
This species is extremely rare in most European countries. In Ukraine only one place is known.