Spearmint
Mentha viridis. Mint Family.
Leaves.--Opposite; aromatic; unequally toothed; narrowly oblong; sessile, or nearly so. Flowers.--Small; purple or whitish; in narrow, leafless, densely crowded spikes; otherwise as in above.
In wet places, in all cultivated districts, we find the spearmint, this plant being an escape from gardens.