Julian J.N. Campbell

Elymus texensis, commonly called Texas wildrye, is a species of flowering plant in the grass family (Poaceae). It is native to United States, where it is endemic to the Edwards Plateau of Texas. Its natural habitat is on calcareous bluffs in Juniperus woodlands and grassy areas. Elymus texensis is a recently discovered and poorly known species. It was described to science in 2006. It is currently only documented from three collections, although further surveys will likely reveal more localities. It appears to be most morphologically similar to Elymus pringlei, which is found further south in

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Elymus macgregorii, also known as early wildrye and Macgregor's wildrye, is a species of grass found in North America, usually east of the 100th meridian. It hybridizes readily with Elymus virginicus and Elymus hystrix.

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Eurybia saxicastelli, commonly known as the Rockcastle aster, is an herbaceous perennial native to the south eastern United States. It is present only in the states of Kentucky and Tennessee along the Rockcastle River and the nearby Big South Fork River. As a result of its extremely restricted range as well as human alterations to its habitat, it is considered critically imperiled by NatureServe. The flowers appear in the late summer through fall and have ray florets that are pale blue to pale white and yellow disc florets that turn purplish with age.