Elymus svensonii

Elymus svensonii, commonly called Svenson's wildrye,[2] is a species of flowering plant in the grass family (Poaceae). It is native to United States, where it is endemic to the Interior Low Plateau of Kentucky and Tennessee.[3][4] Its natural habitat is on dry, rocky, limestone river bluffs.[3]

Elymus svensonii

Vulnerable  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Elymus
Species:
E. svensonii
Binomial name
Elymus svensonii
G.L. Church

It is a rare species, with a restricted range and narrow suitable habitat. Because of these reasons it is considered to be "Vulnerable" (G3) by NatureServe. However, estimating population size is difficult due to its habitat on sheer cliffs, which are dangerous for researchers to access.[1] It is possible that in hard-to-reach areas, populations may be reasonably large.

Elymus svensonii is a perennial grass. It is similar to Elymus hystrix, with which it sometimes hybridizes. It can be distinguished from Elymus hystrix by its curving lemma awns, generally larger glumes, and nodding spikes.[5]

References
  1. Elymus svensonii NatureServe
  2. "Elymus svensonii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 5 May 2018.
  3. "Elymus". Grass Manual on the Web. Archived from the original on May 28, 2017.
  4. "Elymus svensonii". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 5 May 2018.
  5. Alan Weakley (2015). "Flora of the Southern and Mid-Atlantic States".
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