| | + | Mentha spicata, Linn. (M. viridis, Linn.). Spearmint. Fig. 2359. Perennial by leafy stolons: st. erect, with ascending branches 1-2 ft. high: lvs. lanceolate, sharply serrate, 2½ in. or less in length: whorls of fls. in narrow, interrupted spikes 2-4 in. long, the central spike exceeding the lateral ones; calyx-teeth hirsute or glabrate. Widely naturalized about old gardens throughout the older settled parts of the U. S.; native in Eu. and Asia. |