Leymus arenarius

(L.) Hochst.
Common names: European dunegrass Lymegrass Elyme des sables d'europe
Synonyms: Elymus arenarius unknown
Treatment appears in FNA Volume 24. Treatment on page 356.
Click plate for higher resolution version.
Illustrator: Cindy Roché
Plants weakly cespitose, rhizomatous, strongly glaucous. Culms 50-150 cm tall, (2)3-6 mm thick, usually glabrous throughout, occasionally pub¬escent distally to 5 mm below the spike. Leaves exceeded by the spikes; ligules 0.3-2.5 mm; blades 3-11 mm wide, with 15-40 adaxial veins. Spikes 12-35 cm long, 15-25 mm wide, usually with 2 spikelets per node; internodes 8-12 mm, surfaces glabrous, edges ciliate. Spikelets 12-30 mm, with 2-5 florets. Glumes 12-30 mm long, 2-3.5 mm wide, lanceolate, tapering from below midlength, stiff, glabrous towards the base and usually distally, sometimes pubescent distally, the central portion thicker than the margins, 3(5)-veined at midlength, keeled or rounded over the midvein, midveins and sometimes the margins with hairs to about 1.3 mm, apices acuminate; lemmas 12-25 mm, densely villous, hairs 0.3-0.7 mm, 5-7-veined, acute, occasionally awned, awns to 3 mm; anthers 6-9 mm, dehiscent. 2n = 56.

Distribution

Mich., Wis., N.Y., Ill., Ind., Greenland, N.W.T., Ont., Que., Conn.

Discussion

Leymus arenarius is native to Europe. It has become established in sandy habitats around the Great Lakes and the coast of Greenland. It has also been found at a few other widely scattered locations. It is sometimes cultivated, forming large, attractive, blue-green clumps, but its tendency to spread may be undesirable.

References

None.

Lower Taxa

No lower taxa listed.

Facts about "Leymus arenarius"
AuthorMary E. Barkworth +
Authority(L.) Hochst. +
Common nameEuropean dunegrass +, Lymegrass + and Elyme des sables d'europe +
DistributionMich. +, Wis. +, N.Y. +, Ill. +, Ind. +, Greenland +, N.W.T. +, Ont. +, Que. + and Conn. +
IllustratorCindy Roché +
ReferenceNone +
Source xmlhttps://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse grained fna xml/V24/V24 507.xml +
SynonymsElymus arenarius +
Taxon familyPoaceae +
Taxon nameLeymus arenarius +
Taxon parentLeymus +
Taxon rankspecies +
VolumeVolume 24 +