מערכת יחסים: סטייה

Assessing Morphological Species and Interspecific Relationships in North American Grapeferns (Sceptridium; Ophioglossaceae) Using ISSR Markers: https://www.ingentaconnect.com/contentone/aspt/sb/2022/00000047/00000003/art00009?crawler=true

https://onlinelibrary.wiley.com/doi/10.1111/cla.12408

See also: https://www.inaturalist.org/flags/608984