Looks like this entry may need an update...
Dioscorea macrostachys
I'm seeing a different spelling on the CoL
Dioscorea macrostachya
http://www.catalogueoflife.org...
Anyway, it turns out this is a synonym for D. mexicana, which is the name by which I know this plant. So the listing should probably be merged with the existing one for mexicana.
Dioscorea mexicana
Wild Mexican Yam (Dioscorea mexicana)
