Species: Pseudocyphellaria rainierensis

Like all lichens, this plant is a fungus and an alga growing as a unit. It is large (5 to 12 cm across), broad-lobed, and loosely attached. The dull upper surface is a pale greenish-blue that is usually smooth, although short stiff hairs may appear and make it feel rough. The top is also often weakly dimpled. This is the only North American lichen with a spotted lower surface (tiny white spots on a pale brownish background), a white medulla, and torn lobe margins. The underneath is also wrinkled and matted with short tufts of hair. The lobes are short to elongate, thin, stiff and brittl e; they loosel y overla p and measur e 1.5 to 3 cm across (COSEWIC 2000).