Eremochloa ophiuroides var. longifolia Hayata:
Taiwan (Asia)

Eremochloa ophiuroides (Munro) Hack.:
China (Asia)
Costa Rica (Mesoamerica)
Hawaiian Isl (Oceania)
Honduras (Mesoamerica)
India (Asia)
Japan (Asia)
Mexico (Mesoamerica)
Malawi (Africa & Madagascar)
Taiwan (Asia)
United States (North America)
Vietnam (Asia)
Caribbean (Caribbean)

Agrostis crinita Rich. ex Trin. & Rupr.:
New Zealand (Oceania)

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Distributed in South China and Vietnam.

Perennials, Terrestrial, not aquatic, Rhizomes present, Rhizome elongate, creeping, stems distant, Stolons or runners present, Stems trailing, spreading or prostrate, Stems nodes swollen or brittle, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems mat or turf forming, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stems branching above base or distally at nodes, 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 or blade keeled, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule a fringed, ciliate, or lobed membrane, Inflorescence terminal, Inflorescence simple spikes, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence spike linear or cylindric, several times longer than wide, Inflorescence single raceme, fascicle or spike, Inflorescence branches 1-s ided, Rachis dilated, flat, central axis to which spikelets are attached, Flowers bisexual, Spikelets pedicellate, Spikelets sessile or subsessile, Spikelets dorsally compressed or terete, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets paired at rachis nodes, Spikelets all alike and fertille, Spikelets in paired units, 1 sessile, 1 pedicellate, Pedicellate spikelet rudimentary or absent, usually sterile, Spikelets bisexual, Inflorescence disarticulating between nodes or joints of rachis, rachis fragmenting, Spikelets disarticulating beneath or between the florets, Spikelets secund, in rows on one side of rachis, Spikelets closely appressed or embedded in concave portions of axis, 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 keeled or winged, Glumes 4-7 nerved, Lemmas thin, chartaceous, hyaline, car tilaginous, or membranous, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea shorter than lemma, Palea about equal to lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.

This species is occasionally used as a lawn grass in warm regions, especially in the SE United States (Centipede Grass).

Perennial, stoloniferous, mat-forming. Culms decumbent, rooting and branching, flowering shoots 15–30 cm tall. Leaf sheaths keeled, overlapping at base, hairy at mouth; leaf blades flat, (1–)3–10 × 0.2–0.4 cm, usually glabrous, apex obtuse; ligule 0.2–5 mm, margin ciliate. Raceme erect or slightly curved, 4–6 cm; rachis internodes narrowly oblong-clavate, glabrous, ca. 2.5 mm. Sessile spikelet 3.5–4 mm; lower glume oblong, ± leathery, shiny, glabrous, 5–7-veined, marginal spines very inconspicuous, short along incurving lower keels or reduced to knobs, apex acute but appearing broadly truncate because of flanking membranous wings. Pedicelled spikelet vestigial or absent; pedicel ± leaflike, ellipsoid-subulate. Fl. and fr. Jun–Oct. 2n = 18.

Culm tufted. Blade about 4 cm long by 3 mm wide, with short hairs on the back and margins; ligule minute, about 0.2 mm long. Inflorescence a single raceme, about 4 cm long. Spikelets paired, dimorphic, all sessile, the upper reduced, liner as long as the lower; the lower oblong, compressed, about 4 mm long. Lower glume subcoriaceous, oblong, apex 2-winged, lower part inrolled, inconspicuously 9-nerved, tessellate-nerved, glabrous, lateral spines stout and short, as long as the spikelet; upper glume subcoriaceous, lanceolate, margins folded, 3-nerved, about 3.8 mm long. Lower floret hyaline, about 3.4 mm long; lemma lanceolate, boat-shaped, upper margins inrolled; palea elliptical, margins folded. Upper floret of the same texture, about 2.5 mm long; lemma oblong, margins slightly inrolled, irregularly toothed; palea as long as the lemma, deltoid at the apex.

This is a promising lawn grass in Taiwan. It has stoloniferous stems and the leaves form dense flat mats on poor soils on hillsides.

Ischaemum ophiuroides Munro, Proc. Amer. Acad. Arts 4: 363. 1860; Eremochloa ophiuroides var. longifolia Hayata.

Ischaemum ophiuroides Munro, Proc Amer. Acad. 4: 363. 1860.
 Eremochloa ophiuroides (Munro) Hack. var. longifolia Hayata, Icon. Pl. Form. 7: 78. 1918.

Moist meadows, hillsides, especially on clay soils; 200–1200 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Zhejiang [Vietnam].

United States

Rounded National Status Rank: NNA - Not Applicable

Rounded Global Status Rank: GNR - Not Yet Ranked