There are observations of this species in iNat under two different names: Cynanchum barbigerum and Metastelma barbigerum. According to www.itis.gov, M. barbigerum is the accepted name. The Plant List also has M. barbigerum as accepted, while Cynanchum barbigerum is unresolved. BONAP still has Cynanchum barbigerum, however.
Since they are the same species, I'm going to merge them together into M. barbigerum. The name can be changed later if consensus is reached.
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.
