Graphephorum melicoides (Michx.) Desv.

Trisetum melicoides (Michx.) Vasey; Scribn. Bot. Gaz 9: 169. 1884.
Aira melicoides Michx. Fl. Bor. Am. 1; 62. 1803.
fArundo airoides Poir. in Lam. Encyc. 6: 270. 1804. (Type from North America, Michaux.)
Craphephorum niclicoideum Desv. Nouv. Bull.Soc.Philom.2: 189. 1810. (Based on Ajra melicoides
Michx.) ''Deyeuxia airoides Beauv. Agrost. 44, 152, 160. 1812. (Based on Ariindo airoides "Michx.") Poa melicoides Nutt. Gen. 1: 68. 1818. (Based on Aira melicoides Michx.) Triodia melicoides Spreng. Syst. Veg. 1: 331. 1825. (Based on Aira melicoides Michx.) ^.Agrostis airoides Rasp. Ann. Sci. Nat. 5: 449. 1825. (Based on Deyeuxia airoides Beauv.) fCalamagrostis airoides Steud. Nom. Bot. ed. 2. 1: 249. 1840. (Based on Arundo airoides Poir.) Dupontia Cooleyi A. Gray, Man. ed. 2. 556. 1856. (Type from Washington, Michigan, Cooley.) Craphephorum melicoides var. major A. Gray, Proc. Am. Acad. S: 191. 1861. (Based on Dupontia
Cooleyi A. Gray.) Craphephorum melicoideum Cooleyi Scribn. Mem. Torrey Club 5: 53. 1894. (Based on Dupontia
Cooleyi A. Gray.) Trisetum melicoideutn Cooleyi Scribn. Rhodora 8: 87. 1906. (Based on Dupontia Cooleyi A. Gray.) Trisetum melicoides var. majus Hitchc. in B. L. Robinson, Rhodora 10: 65. 1908. (Based on
Craphephorum melicoides var. major A. Gray.) Craphephorum Cooleyi Farwell, Papers Mich. Acad. Sci. 1: 88. 1923. (Based on Dupontia Cooleyi
A. Gray.)
Perennial; culms solitary or few in a tuft, erect or a little decumbent at the base, glabrous, about 3-noded, 50-100 cm. tall; sheaths pilose or scabrous, the upper one very long; ligule thin, erose-dentate, cUiate, 1-3 mm. long; blades scabrous, sometimes pilose on the upper surface, 2-8 mm. wide; panicle somewhat open, nodding, pale, 10-20 cm. long, the axis slender, scabrous, the branches capillary, scabrous, laxly ascending, as much as 7 cm. long, distant but usually overlapping, some of them long-naked below, rather closely flowered above the middle, spikelets 6-7 mm. long, 2-flowered or 3-flowered; the hairs of the rachUla and callus 1-2 mm. long; glumes acute or acuminate, glabrous or nearly so, 4-6 mm. long, the second longer and broader; lemmas acute, scaberulous, often tinged with purple, 5-6 mm. long, rarely with a minute awn just below the tip.
Type locality: Canada.
Distributio.n : River banks and lake shores, mostly in gravelly ground. Newfoundland to Vermont, Michigan, and Wisconsin.

Perennials, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly basal, below middle of stem, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Leaf blades more or less hairy, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence a contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence lax, widely spreadin g, branches drooping, pendulous, Inflorescence branches more than 10 to numerous, Lower panicle branches whorled, Flowers bisexual, Spikelets pedicellate, Spikelets sessile or subsessile, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel hairy, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glumes keeled or winged, Glumes 1 nerved, Glumes 3 nerved, Lemma similar in texture to glumes, Lemma 5-7 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea longer than lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Graphephorum melicoides abans Dupontia cooleyi A. Gray amb el nom nou de Graphephorum melicoides var. majus, és una espècie de planta poàcia de distribució nord-americana.

Graphephorum melicoides là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (Michx.) Desv. mô tả khoa học đầu tiên năm 1810.