Is Calyptocarpus vialis (Asteraceae) native or introduced in Texas?

So today I found this great article that I think is good for clearing the debate of the status of calyptocarpus vialis:
www.phytoneuron.net/PhytoN-Calyptocarpusvialis.pdf

הועלה ב-מרץ 31, 2017 11:47 אחה"צ על ידי caseyp