Elliott's Bentgrass

Agrostis elliottiana Schultes, in R. & S. Syst. Veg. Mant. 2:
202. 1824.
Agrostis arachnoides Ell. Bot. S. C. & Ga. 1: 134. 1816. (The basis of .4. Elliottiana.) Not A. arachnoides Poir. 1810.
Annual; culms slender, delicate, erect, glabrous, about 3-noded, 10-40 cm. tall; sheaths glabrous, striate; ligule thin, acute, lacerate, 3-4 mm. long; blades flat, lax, slightly scabrous, mostly less than 5 cm. long and 1 mm. wide; panicle open, finally rather diffuse, about half the entire height of the plant, the axis glabrous below, scabrous above, the branches capillary, in rather distant verticils, spreading, scabrous, the spikelets somewhat crowded toward the ends of the branchlets, the lateral pedicels (branches of the third or fourth order) about as long as the spikelets, thickened upward, the whole panicle breaking away at maturity and rolling before the wind; glumes acute, scabrous on the keel, 1.5-2 mm. long; lemma minutely toothed, very thin, 1-1.5 mm. long, the callus minutely pilose, the awn early deciduous or sometimes wanting, attached below the apex, very slender, flexuous, delicately short-pilose, 5-10 mm. long; palea wanting.
Type locality: Orangeburg, South Carolina.
Distribution: Fields, waste places, and open ground, Maryland to Illinois. Missouri, and Kansas, and southward to Georgia, Alabama, and eastern Texas; introduced in Maine and Massachusetts: Yucatan.

Agrostis exigua Thurber, in S. Wats. Bot. Calif. 2: 275. 1880
Annual; culms delicate, erect, sometimes branching from near the base, minutely scabrous just below the nodes, about 3-noded, 3-15 cm. tall; sheaths scaberulous; ligule 1-2 mm. long; blades flat, folded, or subinvolute, scabrous, 1-5 cm. long; panicle half the length of the plant, finally open, the axis and branches somewhat scabrous, the lowermost branches in a fascicle of about 5, about 2 cm. long, the branches bearing above the middle 1-few spikelets; glumes acute, scaberulous on and near the keel, 1.5 mm. long; lemma about as long as the glumes, scaberulous toward the 2-toothed apex, bearing below the tip a delicate straight or flexuous awn about 5-8 mm. long; palea wanting.
Type locality: Foothills of the Sierras, California (Bolander).
Distribution: Known only from California (the type and "muddy borders of pond," Howell Mountain, Napa County,. California, Tracy 1552).

Annuals, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, 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 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 co nduplicate, Leaf blades mostly glabrous, 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, Lower panicle branches whorled, Flowers bisexual, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Entire inflorescence falling intact, as a tumbleweed, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes 1 nerved, Lemmas thin, chartaceous, hyal ine, cartilaginous, or membranous, Lemma 3 nerved, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lemma mucronate, very shortly beaked or awned, less than 1-2 mm, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn less than 1 cm long, Lemma awn subapical or dorsal, 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, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.

Agrostis elliottiana is a species of grass known by the common name Elliott's bent grass.