A large amount of sunshine encourages many low-growing grasses from other botanical families to appear among the fescue and nard. They are almost all perennial. They form a veritable tangle of plants. Among the pretty alpine flowers are the spring pasque flower and the blue dwarf spring gentian in summer. Other, smaller plants are perfectly capable of “making holes” in a short-grass prairie that is less intensely grazed than before. Grass networks that lose in density develop weak points that shrubs exploit to grow at the very heart of the prairie: blueberries, which are here associated with lingonberries (cowberries) and calluna, a type of heather.