''Bromus inermis'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of the true grass

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

(

Poaceae Poaceae ( ), also called Gramineae ( ), is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos, the grasses of natural grassland and species cultivate ...

). This

rhizomatous In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

grass is native to

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

and considered invasive in

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

. The plant is characterized by an erect, leafy, long-lived perennial, tall, rhizomatous and commonly producing a dense sod. It starts growth in early spring; flowers May to July; reproduces from seeds, tillers, and rhizomes. It may regrow and re flower in the fall if moisture is sufficient.Smooth Brome
The leaves are glabrous or occasionally pubescent, particularly on the sheaths; blades long, wide, flat, with a raised and keeled midrib below; sheaths closed, except near collar, and papery when dry; leaves rolled in the bud; ligates up to long, rounded, and membranous; auricles absent.

Common names

*''Bromus inermis'' subsp. ''inermis'' ** Austrian bromegrass – English ** awnless brome – English ** Hungarian brome – English ** Hungarian bromegrass – English ** Russian bromegrass – English ** smooth brome – English ** smooth bromegrass – English ** brome inerme – French ** brome sans arêtes – French ** unbegrannte Trespe – German ** wehrlose Trespe – German ** magyar rozsnok - Hungarian ** árva rozsnok - Hungarian ** mágocsi rozsnok - Hungarian ** capim-cevadilha – Portuguese ** bromo de Hungría – Spanish ** bromo inerme – Spanish *''Bromus inermis'' subsp. ''pumpellianus'' ** Arctic brome – English ** Pumpelly's brome – English

References

GBIF entry: ''Bromus inermis''
*

External links

''Bromus inermis''
Photos, drawings, description from Nature Manitoba * inermis Flora of Europe Flora of Northern America Bunchgrasses of Europe Bunchgrasses of North America {{Pooideae-stub