@article {KNZ00366, title = {Local polyploid variation in the native prairie grass Andropogon gerardii}, journal = {American Journal of Botany}, volume = {79}, year = {1992}, pages = {1229 -1232}, keywords = {LTER-KNZ}, doi = {http://www.jstor.org/stable/2445049}, author = {Keeler, K.H.} }