Andropogon bicornis L.

Andropogon bicornis I^. Sp. PI. 1046. 1753
Anatherutn hicome Beauv. Agrost. 150. 1812. Sorgum bicorne Kuntze, Rev. Gen. 791. 1891.
A tall usually much branched perennial, the branches repeatedly divided and borne in dense corymbiform masses. Stems I m. tall or more; leaf-sheaths glabrous; blades flat, 3-4 mm. broad, glabrous, or long-ciliate toward the base, those on the innovations up to 7 dm. long, those on the stem shorter; spathes 3-5 cm. long, brown, somewhat distant from the racemes or more or less enclosing them; racemes slender, the rachis capillary, the internodes and pedicels long-hairy, the former about as long as the sessile spikelets; sessile spikelet linear-lanceolate, 2.5-3.5 mm. long, the first scale with the callus sparsely barbed with hairs about one half as long as the scale, the fourth scale entire, acute, awnless; pedicellate spikelet usually reduced to a single scale, or rarely larger and staminate.
Type locality : Jamaica.
Distribution : Throughout tropical America.

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 branching above base or distally at nodes, Stem internodes s olid or spongy, Stems with inflorescence less than 1 m tall, Stems with inflorescence 1-2 m tall, Stems with inflorescence 2-6 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 blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Ligule a fringed, ciliate, or lobed 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 paired or digitate at a single node, Inflorescence branches paired ra cemes, V-shaped, 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 acute or acuminate, Lemma awnless, Lemma mucronate, very shortly beaked or awned, less t han 1-2 mm, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

El sapé del Brasil​ (Andropogon bicornis) es una especie de planta herbácea perteneciente a la familia Poaceae. Se encuentra en América.

Andropogon bicornis là một loài thực vật có hoa trong họ Hòa thảo. Loài này được L. mô tả khoa học đầu tiên năm 1753.