Star-slime (Nostoc commune)

Although IDd and tagged as research grade, it consistently comes up when I filter for records with id unknown

Searching for ‘Unknown’ actually does two things, searching for records whose ID is ‘Unknown’ (not too surprising there), and searching for records which have no iconic taxa assignment in the iNat taxonomy tree of life. Bactria are not assigned to an iconic taxa, hence they come up in the search.

Not too clear, and it is unclear why the site will not assign them an iconic taxa, but it is not a bug, it is intended behaviour.