Appearance
"Elymus hystrix" is a herbaceous plant with alternate, simple leaves, on erect stems. The flowers are white and bloom in spring."Elymus hystrix" ranges from approximately two and a half to four and a half feet in height. There are usually two spikelets at each of the five to nine nodes of the plant. Unlike some similar native grasses, the blades of "Elymus hystrix" do not have glumes surrounding its spikelets.
"Elymus hystrix" is self-compatible; that is, it can reproduce using its own pollen. "Elymus hystrix" is a perennial meaning it does not completely die at the end of each season, but comes back the next year.
"Elymus hystrix" has four copies of its genome, exhibiting a type of polyploidy called tetraploidy.
Distribution
"Elymus hystrix" is found in the United States east of the Great Plains as well as in Eastern Canada.Habitat
It is usually found in rocky, wet, and partially shaded habitat such as near rivers, creeks, or woods. "Elymus hystrix" does not grow well in heavily shaded areas and often inhabits the regions on the edge of shaded wooded areas such as forests. Growth of "Elymus hystrix" appears to be inhibited by excess shade, but is relatively resistant to soil compaction when compared to other herbaceous plant species.It is a larval host to the northern pearly eye.Food
"Mus musculus", or mice, feed on "Elymus" seeds. It is reasonable that through domestication and enhancement of seed size and nutritional value seeds of "Elymus hystrix" could be useful for consumption by other vertebrates such as humans. Similar species of grasses are eaten by livestock throughout the United States. Other "Elymus" species have been found to be high in crude protein when compared to other native grasses, but research is needed to investigate whether specifically "Elymus hystrix" also exhibits this trait. It is also not immediately evident how nutritious the herbaceous grassy portion of the plant would be to humans, but potential for "Elymus hystrix" as a food source for livestock is also of interest.References:
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