Harriet George Barclay (31 August 1901 - 25 May 1990) was an American botanist, plant ecologist, nature conservationist, and artist.
Barclay was a professor at the University of Tulsa. She later became Chair of the Botany Department in 1953.
She also taught at universities across America: Colorado, Arkansas, Illinois, and North Carolina.
Harriet George Barclay collected over 35,000 plants from 6 different continents, including 15,000 different specimens from South America while conducting research there.
She has over 2,000 specimens on record as identified or collected.
Barclay was instrumental in getting the Nature Conservancy in Washington, D.C. to lease land to the University of Tulsa for Redbud Valley Nature Preserve - the first project of its kind in Oklahoma.
"A trip has no value if you come home and forget it" - Harriet George Barclay.