Blue moor-grass (Sesleria caerulea)

Blue moor-grass can be confused with other species like Alpine Cat's-tail and Purple Stem Cat's-tail due to their similar appearance. However, blue moor-grass is generally shorter and thrives in limestone soils, not acidic ones. Despite its name, it features green leaves and purple flowers. Additionally, it serves as a food source for the caterpillars of the Scotch Argus butterfly.