Blackstonia is a genus of flowering plants of the family Gentianaceae, native to Europe and to nearby regions of Asia and Africa. Its best known species is its type species, Blackstonia perfoliata, the yellow-wort.
The genus is named after the English botanical writer John Blackstone (1712–1753).Gledhill D. 2008. The Names of Plants. Cambridge University Press , page 72
Species Species currently accepted by The Plant List are as follows: Blackstonia acuminata (Koch & Ziz) Domin Blackstonia grandiflora (Viv.) Maire Blackstonia imperfoliata (L.f.) Samp. Blackstonia perfoliata (L.) Huds.
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