Susan Carter Holmes is a botanist and taxonomist at the Royal Botanic Gardens, Kew

Royal Botanic Gardens, Kew

The Royal Botanic Gardens, Kew, usually referred to as Kew Gardens, is 121 hectares of gardens and botanical glasshouses between Richmond and Kew in southwest London, England. "The Royal Botanic Gardens, Kew" and the brand name "Kew" are also used as umbrella terms for the institution that runs...

. She discovered and catalogued more than 200 plants of the family Euphorbiaceae

Euphorbiaceae

Euphorbiaceae, the Spurge family are a large family of flowering plants with 300 genera and around 7,500 species. Most are herbs, but some, especially in the tropics, are also shrubs or trees. Some are succulent and resemble cacti....

, particularly of the succulent East African members of the genera Euphorbia and Monadenium, as well as about 20 Aloe

Aloe

Aloe , also Aloë, is a genus containing about 500 species of flowering succulent plants. The most common and well known of these is Aloe vera, or "true aloe"....

species. All plants and articles are published under her maiden-name Susan Carter.

Susan Carter Holmes is currently president of the International Euphorbia Society

International Euphorbia Society

The International Euphorbia Society was founded in January 2005. It is dedicated to the furtherance of knowledge of plants of the Euphorbiaceae and of their cultivation....

 (IES).

Plants named in honor to her are

• Euphorbia carteriana P.R.O.Bally 1964
• Euphorbia holmesiae Lavranos 1992
• Euphorbia susanholmesiae Binojk. & Gopalan
  Gopalan
  Gopalan may refer to*A. K. Gopalan, Indian Communist leader*M. J. Gopalan, Indian Cricket and Hockey Player*Crazy Gopalan, Malayalam film*Susheela Gopalan, MP and Indian Communist leader*K. P. R. Gopalan, Indian Communist leader*M. J...
  
  1993