Elymus mollis var. japonicus Bowden:
Japan (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Leymus mollis (Trin.) Pilg.:
Canada (North America)
China (Asia)
Greenland (North America)
United States (North America)
Japan (Asia)
Russian Federation (Asia)
Mongolia (Asia)
South Korea (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Leymus mollis (Trin.) H. Hara:
South Korea (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Culms solitary or tufted, 30–80 cm tall, smooth, glabrous, but puberulent below spike. Leaf sheath longer or shorter than internode, glabrous; ligule 1–2 mm; leaf blade usually rolled, 10–15 × 0.4–0.7 cm, stiff, abaxial surface smooth, adaxial surface slightly scabrous. Spike 9–15 × 1–1.5 cm; rachis robust, puberulent; internodes 6–10 mm. Spikelets (1 or)2 or 3 per node, 1.5–2 cm, with 2–5 florets; rachilla puberulent. Glumes covering only base of lemma, oblong-lanceolate, 12–20 × 2–2.5 mm, 3–5-veined with keel-like midvein, puberulent, margin membranous. Lemma lanceolate, 5-veined, puberulent, apex mucronate; first lemma 12–14 mm. Palea slightly shorter than lemma, ciliolate along keels. Anthers 5–6 mm. Fl. and fr. May–Aug. 2n = 28.

Perennials, Terrestrial, not aquatic, Rhizomes present, Rhizome elongate, creeping, stems distant, Stems nodes swollen or brittle, Stems erect or ascending, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems mat or turf forming, Stems solitary, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems with inflorescence 1-2 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 blade auriculate, Leaf blades 2-10 mm wide, Leaf blades 1-2 cm wide, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule pre sent, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence simple spikes, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence single raceme, fascicle or spike, Inflorescence spikelets arranged in a terminal bilateral spike, Rachis dilated, flat, central axis to which spikelets are attached, Flowers bisexual, Spikelets pedicellate, Spikelets sessile or subsessile, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 3-7 florets, Spikelets paired at rachis nodes, Spikelets 3 per node, Spikelets distichously arranged, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or sube qual, Glumes distinctly unequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes awn-like, elongated or subulate, Glumes awned, awn 1-5 mm or longer, Glume surface hairy, villous or pilose, Glumes 1 nerved, Glumes 3 nerved, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma 5-7 nerved, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Palea present, well developed, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Palea keels winged, scabrous, or ciliate, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear, Caryopsis hairy at apex.

Elymus mollis Trinius in Sprengel, Neue Entdeck. Pflanzenk. 2: 72. 1821; E. arenarius Linnaeus var. coreensis Hackel; E. arenarius subsp. mollis (Trinius) Hultén; E. arenarius var. mollis (Trinius) Koidzumi; E. mollis var. coreensis (Hackel) Honda; Leymus arenarius (Linnaeus) Hochstetter subsp. mollis (Trinius) Tzvelev; Triticum molle (Trinius) F. Hermann.

Isotype for Elymus mollis var. brevispicus Scribn. & J.G. Sm.
Catalog Number: US 726457
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): Collector unknown
Year Collected: 1895
Locality: St. Lawrence Bay, Chukotka, Russian Federation, Asia-Temperate

Isotype for Elymus capitatus Scribn.
Catalog Number: US 81644
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of alleged type specimen
Preparation: Pressed specimen
Collector(s): W. H. Evans
Year Collected: 1897
Locality: Homer., Alaska, United States, North America

Isotype for Elymus mollis var. brevispicus Scribn. & J.G. Sm.
Catalog Number: US 726423
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): Collector unknown
Year Collected: 1895
Locality: Siberia., Russian Federation, Asia-Temperate

Coastal pebbles and sands. Hebei, Liaoning, Shandong [Japan, Korea, Mongolia, Russia; N North America].

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 11
Specimens with Barcodes: 18
Species With Barcodes: 1

Rounded Global Status Rank: G5 - Secure

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked