1. English name of the endogenous genus Triglōchin, containing humble marsh plants with grass-like leaves. [Referring, like the Gr. name, to the ‘3-barbed’ appearance of the burst capsule.]
1792–1807. Sir J. E. Smith, Eng. Bot., VI. 366. All cattle will eat the marsh Arrow-grass.
1801. Withering, Bot. Arrangem. (ed. 4), II. 352. Triglochin Palustre, Arrow-headed grass. Marsh Arrow-grass. The pointed valves of the capsule opening at the bottom, give it the appearance of the head of an arrow.
1882. Pall Mall Gaz., 8 June, 4/1. Overgrown by thick-leaved salt-marsh plants … glass-wort and arrow-grass.
2. A Brazilian grass of the same genus as the Pampas Grass. [Cf. ARROW sb. 7 b.]
1863. Bates, Nat. on Amazons, vii. 168. Large tracts of arrow-grass (Gynerium Saccharoides), which bears elegant plumes of flowers like those of the reed, and grows to a height of twenty feet.
