Mentha villosa Huds. [ Mentha sylvestris var. nemorosa (Willd.) Benth.]
no HD illustration available (m1)
Mentha villosa Huds. [ Mentha spicata var. longifolia L.] [Labiatae]
H.G.L. Reichenbach, Iconogr. Bot. Pl. Crit., vol. 10 : t. 984, fig. 1315 (1832) [H. Hummitzsch]