title: Karl McKay Wiegand
text: # Karl McKay Wiegand
  
  Karl McKay Wiegand (June 2, 1873 – March 12, 1942) was an American botanist who headed the Department of Botany at Cornell University for 28 years. He was a member of the Botanical Society of America and served as its president in 1939.
  
  The standard author abbreviation Wiegand is used to indicate this person as the author when citing a botanical name.
  
  