agrostis

plural agrostises

1. uncountableusuallyAny grass of the genus Agrostis of bentgrasses.

   2 more examples

   Above, see those delicate threads of the purple amoret, with its flood of anthers that are nearly yellow; the snowy pyramids of the meadow-sweet, the green tresses of the wild oats, the slender plumes of the agrostis, which we call wind-ear; roseate hopes, decking love's earliest dream and standing forth against the gray surroundings.

   1891, Katharine Prescott Wormeley, The Lily of the Valley, translation of original by Honore de Balzac

   The ground is littered with fallen trunks that lie crossed and recrossed like storm-lodged wheat; and besides this close forest of pines, the rich moraine soil supports a luxuriant growth of ribbon-leaved grasses--bromus, triticum, calamagrostis, agrostis, etc., which rear their handsome spikes and panicles above your waist.

   1894, John Muir, The Mountains of California