Walter Stephen Judd

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Walter Stephen Judd
Born 1951
Fairbanks, Alaska
Residence Gainesville, Florida
Nationality American
Alma mater Harvard University
Known for Plant taxonomy (Judd system)
Spouse(s) Beverly
Scientific career
Fields Botany
Institutions University of Florida
Author abbrev. (botany) Judd

Walter S. Judd is an American botanist and taxonomist, and Distinguished Professor in the Department of Botany, University of Florida since 2009.[1]


B.S. Michigan State University 1973, M.S. Michigan State University 1974, Ph.D. Harvard University 1978. He became an Assistant professor in the Department of Botany at the University of Florida 1978-1983, Associate professor 1983-1991 and Professor in 1991. He was President of the American Society of Plant Taxonomists 2000-2001.[1]


Professor Judd has been a contributor to the Angiosperm Phylogeny Group and produced his own modification of this in 1999, the Judd system.


  • American Society of Plant Taxonomists: Asa Gray Award 2011[2]
  • National Museum of Natural History: José Cuatrecasas Medal for Excellence in Tropical Botany 2012.[3]