Revised! SS-AGR-77, a 5-page illustrated fact sheet by Brent Sellers, Jay Ferrell, J. Jeffrey Mullahey, and Pat Hogue informs about this serious weed problem in perennial grass pastures and native areas of Florida, taxonomy, biology, ecology, chemical control, biological control and management. Includes references. Published by the UF Department of Agronomy, February 2009.
http://edis.ifas.ufl.edu/UW097