Silene salmonacea is a rare, newly described species of flowering plant in the pink family known by the common names Klamath Mountain catchfly and salmon-flowered catchfly. It is known only from Trinity County, California, where it grows in the forests of the southern Klamath Mountains. It is a member of the serpentine soils flora. It is a small perennial herb growing just a few centimeters tall. The spoon-shaped leaves are up to 3.5 centimeters long. The herbage is gray-green and lightly woolly in texture. Each flower has a tubular calyx of fused sepals lined with ten veins. There are five salmon pink petals, each with four lobes at the tip.