Ziziphora clinopodioides subsp. rigida (Boissier) Rechinger (1982: 483) . (Fig. 6).

≡ Ziziphora clinopodioides var. rigida Boissier (1879: 586) .

≡ Z. rigida (Boissier) Braun (1889: 239) .

Type: — IRAN. In m. Elbrus, pr. Derbend, 30 June 1843, Kotschy 408 (lectotype G00402142!; isolectotypes BM001122344!, G00402143!, K000938873!, W0031742!, W0031743!, WAG0004424 -photo!; here designated by Dirmenci) .

Flowering stems erect, simple or branched, thin and long to 50 cm tall, green to whitish, sparsely short pubescent to villous or glabrescent. Leaves narrowly lanceolate, 8‒30 × 2‒6 mm, attenutae at base, acute to acuminate at apex, subglabrous to pubescent. Verticillasters forming a densely subglobose capitate head. Calyx (3‒) 4‒5 mm long, whitish-green, pubescent to villous with sessile glands, sometimes glabrescent.

Habitat: —Open dry rocky slopes, stony hillsides, calcareous,; elev.. 1300‒2550 m; fl. & fr. July to August.

Distribution: — Afghanistan, Iran, Iraq, Transcaucasus, Turkey, and Turkmenistan.

Examined Specimens: — TURKEY. Van: 78 km S. of Gürpınar, 2550 m, 23 August 1984, Sorger 84-79-13 (W1992-04108!) ; Ad pagum Chomar in valle fluv. Bochtan ( Botan), dit. Sattak ( Çatak) in rupestribus schistosis, 1400 m, 31 July 1910, Nábělek 1466 (SAV0004686 -photo!; SAV0004687 -photo!; SAV0004688 -photo!) ;— IRAQ. MSU: Penjwin, 1850 m, 20 August 1953, Guest 12960 (BAG!, K!) ; Ibidem 1550 m, 20 August 1953, Guest 12961 (BAG!, K!) ; Mola Kowa (on Sulaimaniya-Penjwin highway), 1320 m, 20 June 1957, Rawi 22484 (BAG!, K!) ; Penjwin, open dry rocky slopes, 19 July, 1961, Haines 2040 (E!, K!) ; Pass, 7 km before reaching Penjwin, in Sulaimaniya Liwa, 19 June 1957, Rechinger 18506 (BUH!, K!) ; 1.5 km NW Basneh village, open area with clay soil, 1924 m, 27 June 2019, Haloob, Ikhlas & Hamshkan 60240 (BAG!) ; in ditione pagi Penjwin, in glareosis jugi Malakawa, substr. Serpentine, 1400 m, 19-20 June1957, Rechinger 10413 (G!, K!, W!) ; Penjwin, 19 July 1961, Haines, 18508 (BUH!) ; Penjwin, 13 July 1961, Alhashimi 18503 (BUH!) ; in montibus calcareis Avroman et Schahu, 06 July 1867, 2133 m, Haussknecht s.n. (W!) .

Boissier (1879: 586) described it as a variety of Z. clinopodioides based on syntypes: Szovits s.n., Kotschy 408 & 698, Aucher 1639 & 5115, Haussknecht s.n., Griff s.n., and Stocks s.n”. Later, lectotype was designated as Kotschy 408 in the Flora Iranica by Rechinger (1982). He stated that type specimens were stored in G and W herbaria. However, it was not specified which specimen was the lectotype and which herbarium this specimen was in. There are two specimens of Kotschy 408 in G (G00402142 and G00402143) and W herbaria (W0031742 and W0031743). Therefore, according to the Shenzhen Code 2018: Art. 9.15, the specimen with barcode number G00402142 in G is designated as the lectotype because it is well preserved and best reflects the characteristics of the taxon in the protologue (Fig. 6). Specimens at G, W & K herbaria (barcodes G00402143, W0031742, W0031743, WAG0004424, K000938873) are isolectotypes.