A (diminutive of asper, rough). Syn., As prella. Gramlnece. Perennial grasses, with looser and more slender terminal spikes than Elymus. Spikelets usually in pairs, on short pedicels, empty glumes wanting or appearing as simple rudiments in the lowest spikelets of each spike. Species 4. N.Amer., Siberia, New Zeal. Hystrix, Humb. BOTTLE-BRUSH Gmss. Spikelets stand out at right angles, suggesting brushes used for cleaning bottles. A native grass, growing in woodlands and on the borders of thickets; sometimes used for lawn decoration. p_ B_ KumY_