Stachys sect. Olisia subsect. Rosulatae, Bhattacharjee, 1980

Firat, Mehmet & Güner, Özal, 2022, Stachys cudiensis (Lamiaceae), a new species from Şırnak province (Turkey), belonging to section Olisia, Phytotaxa 570 (1), pp. 43-54 : 48

Key to Turkish species of Stachys sect. Olisia subsect. Rosulatae

1. Bracteoles absent ................................................................................................................................................................................2

1. Bracteoles conspicuous, linear-subulate, 1.5‒5 mm long, herbaceous ..............................................................................................3

2. Verticillasters 2-flowered; basal rosettes of leaves on flowering shoots................................................................................ S. inanis

2. Verticillasters 4‒6 flowered; basal rosettes of leaves on sterile shoots .................................................................. S. munzurdagensis

3. Flowering stems glabrous, calyx 5‒8.5 mm long, corolla 10‒17 mm long ................................................................. S. diversifolia

3. Flowering stems retrorsely pubescent, calyx 4‒4.5 mm long, corolla, 7‒8 mm long....................................................... S. cudiensis