Penstemon rydbergii, commonly known as Rydberg's penstemon[1] or meadow penstemon, is a perennial plant in the plantain family (Plantaginaceae) that grows in damp, grassy meadows of the Great Basin and Rocky Mountains of the western United States.[2]: 49 

References

  1. ^ NRCS. "Penstemon rydbergii". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 22 September 2015.
  2. ^ Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., ISBN 0-7627-3805-7
Allikas: https://en.wikipedia.org/wiki/Penstemon_rydbergii
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