Zerdana anchonioides var. stenophylla Boiss., Fl. Orient. Suppl.: 46. 1888.

 Sterigmostemum anchonioides subsp. stenophyllum (Boiss.) D.A. German & Al-Shehbaz in Novosti Sist. Vyssh. Rast. 48: 80. 2017.

Type: “Hab. in lapidosis cacuminis montis Kuh Nur Persiae occidentalis 12000' (Haussk.!)”.

Lectotypus (first step designated by JACQUEMOUD, 1985: 368; second step designated here): IRAN: “In lapidosis cacum. m. Kuh Nur”, 12000' [3660 m], 1868, Haussknecht s.n. (G-BOIS [G00332240]; isolecto-: BM [BM001172164], JE [JE00001383], P [P01817641, P01817642], W [W0051432]) .

Notes. – The labels and taxon name of both duplicates at P were handwritten by Boissier, which justifies the above lectotypification by JACQUEMOUD (1985). However, it should be noted that the lectotype was designated at JE instead of G-BOIS, and a second step is proposed to correct that.

Authorship of the varietal name is erroneously listed as Boiss. & Hausskn. instead of Boiss. in BRASSIBASE (2019), IPNI (2019), and JACQUEMOUD (1985), but there is nothing in the protologue to support those listings.