Isatis corymbosa Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 200. 1842.

 Isatis tinctoria subsp. corymbosa (Boiss.) P.H. Davis in Notes Roy. Bot. Gard. Edinburgh 26: 22. 1964.

Type: “[Aucher-Eloy] N. 210, è Schedulâ collectionis meae in monte Tauro, ex eâ Musaei Parisiensis in Thessali â, circà Larissam ”.

Lectotypus (designated here): TURKEY: “in Mte. Tauro”, s.d., Aucher-Eloy 210 (G-BOIS [G00332615]; isolecto-: K [K000642883]) . Syntypi: GREECE: “Inter Jugets Thessaliae. circa Larystam”, 1836, Aucher-Eloy s.n. (P [P00741424]) ; “ Thessalia ”, s.d., Aucher-Eloy s.n. (P [P00741425]) .

Notes. – BOISSIER (1842b) based the species description on the unicate in his herbarium and on P00741424 that he annotated. Therefore, lectotypification is justified.

The label data in P00741426 is “Graecia, Cilicia, 1834 –1936, Aucher-Eloy 210 ”, and although the collection number is the same as that of the lectotype, the collection date and locality are quite different. To our knowledge, Cilicia is in southern Turkey, not Greece, and therefore, this specimen is not considered as part of the type collection.

The subspecies is distributed in the southwestern portions of Turkey, south central and western Greece, and Crimea. It was recognized by TAN (2002) as a synonym of Isatis tomentella (see previous entry), but it is more practical to treat it as independent taxon, as recognized here, by DAVIS (1965b), and BRASSIBASE (2019).