Paspalum virletii E. Fourn.

Paspalum virletii Fourn. Mex. Pi. Gram. 12. 1881
Stems up to 1 m. tall, glabrous, simple; leaf -sheaths papillose-hirsute; blades up to 2 dm, long, 1-2 cm. wide, lanceolate, flat, papillose-hirsute; racemes 5-10, rarely more, ascending or erect, 2-8 cm. long, the lower ones sometimes stalked, the rachis about 1 mm. wide; spikelets in pairs, 2 mm. long, 1-1.2 mm. wide, elliptic to obovate, pubescent with spreading hairs, the first scale wanting, the second commonly 5-nerved, the third 3-nerved, the fruiting scale, yellowish, smooth and shining.
Type locality : Described from a plant from the Paris Garden. Distribution : Southern Mexico.

Perennials, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem nodes bearded or hairy, Ste m internodes solid or spongy, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, 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 and blade differentiated, Leaf blades linear, 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 solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence a panicle with narrowly racemose or spicate branches, Inflorescence with 2-10 branches, Inflorescence branches 1-sided, Rachis dilated, flat, central axis to which spikelets are attached, Rachis angular, Flowers bisexual, Spikelets pedicellate, Spikelets dorsally compressed or terete, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets with 2 florets, Spikelet with 1 fertile floret and 1-2 sterile florets, Spikelets paired at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating below the glumes, Spikelets secund, in rows on one side of rachis, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 1 clearly present, the other greatly reduced or absent, Glumes distinctly unequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes 3 nerved, Lemma similar in texture to glumes, Lemma becoming indurate, enclosing palea and caryopsis, Lemma 3 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 shorter than lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Paspalum virletii là một loài thực vật có hoa trong họ Hòa thảo. Loài này được E.Fourn. mô tả khoa học đầu tiên năm 1886.