Biscutella didyma subsp. didyma L. Dataset Update on the Brassicaceae Species Checklist Rank SUBSPECIES Published in Linnaeus, C. von. NA Classification family Brassicaceae genus Biscutella Name Synonyms Biscutella columnae Ten. Biscutella didyma subsp. columnae (Ten.) Nyman Biscutella didyma var. columnae (Ten.) Halácsy Homonyms Biscutella didyma subsp. didyma L.