syn. Acanthopanax sieboldianus Makino, growing along the edge of the picnic area at the base of the forested slope. No. 880701015.
See also: https://michiganflora.net/record/188
and
https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A89490-1