Panicum wilcoxianum Vasey

Panicum wilcoxianum Vasey, Bull. XL S. Dep. Agr. Bot. 8: 32
1889.
Milium Wilcoxianum Lunell, Am. Midi. Nat. 4: 213. 1915.
Vernal phase dull-green; culms usually in* dense tufts, erect, 10-25 cm. high, copiously papillose-hirsute, as are the rather loose, usually overlapping leaf-sheaths; ligule about 1 mm. long; blades firm, erect or ascending, 5-8 cm. long, 3-6 mm. wide, broadest toward the base (this scarcely wider than the wide sheath), commonly involute-acuminate, long-hirsute on both surfaces; panicles finally exserted, often equaled or exceeded by the upper blades, 2-5 cm. long, about half as wide, or sometimes more expanded at anthesis, rather densely flowered; spikelets 2.7-3 mm. long, 1.5 mm. wide, obovate-elliptic, papillose-pubescent; first glume about one third as long as the spikelet, pointed or obtuse; second glume slightly shorter than the fruit and sterile lemma; fruit 2.4^2.5 mm. long, 1.3-1.4 mm. wide, elliptic.
Autumnal phase branching from all the nodes, forming bushy tufts with rigid, erect blades much overtopping the reduced panicles ; branches appearing early, usually before the maturity of the primary panicles; secondary spikelets usually more turgid than those of the primary panicles.
Typb locality: Nebraska. Distribution: Manitoba to Iowa and Kansas.

Perennials, Terrestrial, not aquatic, Rhizomes present, Stems nodes swollen or brittle, Stems erect or ascending, Stems solitary, 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 hairy, hispid or prickly, Leaf sheath hairy at summit, throat, or collar, Leaf sheath and blade differentiated, Leaf blades lanceolate, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blades more or less hairy, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence branches more than 10 to numerous, Flowers bisexual, Flowers unisexual, Spikelets pedicellate, Spikelets dorsally compressed or terete, Inflorescence or spikelets partially hidden in leaf sheaths, subtended by spatheole, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets with 2 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating below the glumes, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes distinctly unequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes 3 nerved, Glumes 4-7 nerved, Lemma similar in texture to glumes, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma becoming indurate, enclosing palea and caryopsis, Lemma 3 nerved, Lemma 5-7 nerved, Lemma 8-15 nerved, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lemma awnless, Lemma margins inrolled, tightly covering palea and caryopsis, Lemma straight, Palea present, well developed, Palea about equal to lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Panicum wilcoxianum adalah spesies tumbuhan yang tergolong ke dalam famili Poaceae. Spesies ini juga merupakan bagian dari ordo Poales. Spesies Panicum wilcoxianum sendiri merupakan bagian dari genus Panicum. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Vasey.

Panicum wilcoxianum là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Vasey mô tả khoa học đầu tiên năm 1889.