RT Journal Article SR Electronic T1 Texas Roadside Wildflowers JF Native Plants Journal JO NATIVE PLANTS JOURNAL FD University of Wisconsin Press SP 69 OP 71 DO 10.2979/NPJ.2005.6.1.69 VO 6 IS 1 A1 Dennis Markwardt YR 2005 UL http://npj.uwpress.org/content/6/1/69.abstract AB