The Kew record of taxonomic literature (from the Royal Botanic Gardens, at Kew, UK) is now online. You can search the complete database on its own or in conjunction with either or both of two other Kew datasets - Economic Botany and Plant Micromorphology. The Kew record of taxonomic literature is a bibliography of more than 200,000 publications relating to the taxonomy of flowering plants, gymnosperms, and ferns. It was published from 1971 up to the end of 2007, but is no longer being updated. The other two datasets are still being added to.

Economic Botany contains 33,000 references to publications relating to the uses by humans of flowering plants, gymnosperms and ferns.

Plant Micromorphology contains more than 90,000 references to publications and is probably the most comprehensive computerised index to higher plant micromorphology in existence.