The genus Botrychium has historically been a challenge for botanists due to its subtle morphological differences and high rates of hybridization.
: Many species are highly dependent on mycorrhizal fungi (specifically the genus Glomus ) for nutrition, sometimes spending years underground without emerging above the surface. botrychium
: Modern genetic research has revealed that what was once considered a single widespread species, like Botrychium lunaria , is actually a complex of many distinct, often cryptic, species. The genus Botrychium has historically been a challenge
: While found on every continent except Antarctica, North America is considered a center of diversity for the genus. : While found on every continent except Antarctica,
: Related groups formerly classified under Botrychium , such as the rattlesnake fern ( Botrypus ) and grapeferns ( Sceptridium ), are now often treated as separate genera. Conservation Status Lessons from the Botrychium matricariifolium complex