The following species in the flowering plant genus Thymus, the thymes, are accepted by Plants of the World Online.[1]Thymus is considered a welldefined genus within its family as its species have consistent chemical and morphological characters.[2]
Web site: Thymus L. . Plants of the World Online . Board of Trustees of the Royal Botanic Gardens, Kew . 2022 . 18 February 2022.
Book: Thyme: The Genus Thymus . Stahl-Biskup . Elisabeth . Saez . Francisco . 1. The history, botany and taxonomy of the genus Thymus . Morales . Ramón . 5 September 2002 . 16 . CRC Press . 9780203216859 .