The data I am actually working with is here: http://www.xerces.org/wp-content/uploads/2012/06/conserving_bb.pdf#page=29

and within https://www.wildflower.org/collections/collection.php?collection=xerces_bumble that use USDA Native status.

After searching the Property proposal archives (guided by Laura's suggestions) for "indigenous" and others, I found discussion between John Vandenberg and Felix Reimann that was sort of helpful...where they discuss "indigenous"...

But even John and Felix are left openly pondering the best way to capture "native" status of Plants in Wikidata.

Which also leaves my question open about the best way / property to store the concepts of Native Plants

(we have the opposite already being invasive to P5588

USDA defines "native" as this and with codes:

Where you often see the codes and data used on sites such as https://www.wildflower.org/plants/result.php?id_plant=AGSC

How do folks openly discuss such "left open" questions with experts ?  Do I just ask John and Felix on their Talk pages ?  I'd prefer a roundtable discussion.  How is that done on Wikidata ?