• Vascular plant extinction in the continental United States and Canada https://conbio.onlinelibrary.wiley.com/doi/abs/10.1111/cobi.13621?fbclid=iwar2nghlkpgzafu48pmzmi-bzan1idta4nkwd9iafafqxcgt4dgkt68ddz74#.x1zuetgw16g.facebook 5 comments 12/9/2020 science