Andropogon liebmannii Hack.

Andropogon mohrii Hack.; Vasey, Contr. U. S. Nat
Herb. 3 : 11. 1892.
Andropogon Liebmanni Mohrii Hack, in DC. Monog. Phan. 6 : 413. 1889. Andropogon Mohrii pungensis Ashe, Jour. Klisha Mitchell Sec. 15 : 114. 1898.
Stems 8-15 dm. tall, branched above, the branches divided, densely barbed at the nodes; leaf-sheaths densely hirsute; blades 3 dm. long or less, up to 5 mm. wide, densely hirsute; spathes 4-5 cm. long, equaling or a little shorter than the racemes; racemes in 4's, 3-4 cm. long, rather stout, the hairs at the summit of the internodes one and one half times as long as the sessile spikelets; sessile spikelet 4.5-5 mm. long, about twice as long as the internodes, the first scale bi-mucronate at the apex, hispid on the keels, the second scale hispid on the keel, the fourth scale with an awn 2-2.5 cm. long, slightly if at all twisted at the base; pedicellate spikelet wanting, or sometimes present as a small subulate scale, the pedicel usually a little shorter than the sessile spikelet.
Type locality : In wet pine woods, near Mobile, Alabama.
Distribution : Washington County, North Carolina (according to Ashe); Georgia and northern Florida to I^ouisiana.

Perennials, Terrestrial, not aquatic, Rhizomes present, Stems nodes swollen or brittle, Stems erect or ascending, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stems b ranching above base or distally at nodes, Stem internodes solid or spongy, 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 and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blades more or less hairy, Ligule present, Ligule an unfringed eciliate membrane, Ligule a fringed, ciliate, or lobed membrane, Inflorescence terminal, Inflorescence lateral or axillary, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence a panicle with narrowly racemose or spicate branches, Inflorescence a panicle with digitately arranged spicate branches, Inflorescence with 2-10 bran ches, Inflorescence branches paired or digitate at a single node, Flowers bisexual, Flowers unisexual, Spikelets pedicellate, Spikelets sessile or subsessile, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets paired at rachis nodes, Spikelets in paired units, 1 sessile, 1 pedicellate, Pedicellate spikelet rudimentary or absent, usually sterile, Spikelets bisexual, Spikelets unisexual, Inflorescence disarticulating between nodes or joints of rachis, rachis fragmenting, Spikelets disarticulating below the glumes, Spikelets falling with parts of disarticulating rachis or pedicel, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glumes keeled or winged, Glume surface hairy, villous or pilose, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 1 nerved, Lemma 3 nerved, Lemma glabrous, Lemma apex dentate, 2-fid, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn 1-2 cm long, Lemma awn from sinus of bifid apex, Lemma awn once geniculate, bent once, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Stamens 1, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Andropogon liebmannii là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Hack. mô tả khoa học đầu tiên năm 1885.