Paspalum caespitosum Flüggé

Paspalum caespitosum Fliigge, Gram. Monog. 161. 1810
Paspalum gracile Poir. in I,am. Encyc. Suppl. 4 : 313. 1816. Not P. gracile Rudge, 1805.
Paspalum helerophyllum. Poir. in Lam. Encyc. Suppl. 4 : 315. 1816.
Paspalum Poiretii R. & S. Syst. Veg. 2 : 878. 1817.
Paspalum, lanceaefolium. Desv. Opusc. 58. 1831.
1 Paspalum. Richardi Steud. Syn. Gram. 17. 1854.
Paspalum Blodgetiii Chapm. Fl. S. U. S. 571. 1860.
Paspalum caespilosum longifolium Vasey, Bull. Torrey Club 13 : 164. 1886.
A slender tufted perennial, with flat glabrous leaf-blades and pubescent spikelets. Stems 3-6 dm. tall, slender; leaf-sheaths smooth and glabrous; blades 5-20 cm. long, 3-7 mm. wide, narrowed at both ends, linear, erect or nearly so, flat, glabrous; racemes 2-6, erect, 1.5-5 cm. long, slender, the rachis about 0.5 mm. wide; spikelets in pairs, 1.5-1.8 mm. long and about 0.8 mm. wide, elliptic, the first scale wanting, the second and third scales sparsely papillosepubescent with appressed hairs, 3-nerved, the fruiting scale yellowishwhite.
Type locality : Hispaniola.
Distribution : Southern Florida and Bahamas to Jamaica, Cuba, I-Tispaniola, and Porto Rico.

Perennials, Terrestrial, not aquatic, Bulbs present, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems swollen at base, tuberous, cormous or bulbous, Stems terete, round in cross section, or polygonal, Stem nodes bearded or hairy, Stem 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 smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf bla des 2-10 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, 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 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 si de 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, Glumes 4-7 nerved, Lemma similar in texture to glumes, Lemma 3 nerved, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lemma awnless, Lemma straight, Palea present, well developed, Palea shorter than lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Paspalum caespitosum là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Flüggé mô tả khoa học đầu tiên năm 1810.