Botrychium -

: While found on every continent except Antarctica, North America is considered a center of diversity for the genus.

, commonly known as moonworts , is a genus of small, fleshy ferns within the Ophioglossaceae family. These unique vascular plants are found worldwide and are often distinguished by their unusual growth form, consisting of a single stalk that splits into two distinct segments: a sterile, leaf-like part called a trophophore and a fertile, spore-bearing part known as a sporophore . Biology and Growth Habits 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. : While found on every continent except Antarctica,

: Many species are highly dependent on mycorrhizal fungi (specifically the genus Glomus ) for nutrition, sometimes spending years underground without emerging above the surface. Biology and Growth Habits : Modern genetic research

: Individual plants can exhibit "vegetative dormancy," where they fail to appear for one or more seasons before re-emerging later. Diversity and Taxonomy

The genus Botrychium has historically been a challenge for botanists due to its subtle morphological differences and high rates of hybridization.