http://www.dailyyonder.com/give-cedars-break/2010/12/17/3088
http://sanantoniosustainableliving.blogspot.com/2009/07/whos-afraid-of-mountain-cedar-not-land.html
http://www.edwardsaquifer.net/brush.html
http://www.wildflower.org/mobile/expert/show.php?id=1549
http://txmn.org/capital/files/fnv3n5.pdf
http://limestonebutterfly.blogspot.com/2008/12/basket-grass.html
http://5f8c274712c4ea693cc1-fdbcf82d3dfc08785157cf0d6fc8ed50.r16.cf1.rackcdn.com/0712JE.pdf