South african botanist (1896-1989).
Inez Clare Verdoorn (15 June 1896 – 2 April 1989) was a South African botanist and taxonomist, noted for her major revisions of plant families and genera. She is also a niece of Eugène Nielen Marais, lawyer, naturalist, poet and writer. She matriculated in 1916 from Loreto Convent School in Pretoria, worked for a while in the office of the Controller and Auditor General before being appointed in 1917 as a herbarium assistant at the Division of Botany and Plant Pathology. Between 1925 and 1927 she worked at Kew as liaison officer for the National Herbarium. On her return to Pretoria, she assume