Isoetes butleri Isoetaceae
![](image.php?type=tn430&id=17351)
Comments: Stone Co., Arkansas. Habitat. Growing in open sand and mixed with graminoids in lower center-right of image. 30 June 2014. Photo by P. Schafran.
Added: 7/7/14
WARNING: Accurate determination of this plant or fungus depends on more than this single image.