Scientific name: Lasallia papulosa

Look closely at granite cliff faces and boulders here at the park and you just might see Common Toadskin Lichen! This type of Blistered Navel Lichen is an umbilicate lichen (a.k.a. A lichen which attaches to its substrate at a single point), and thrives on acidic rocks such as granite. Like other lichens, Common Toadskin consists of two organisms; an algal phycobiont (which provides food via photosynthesis) and a fungal mycobiont (which absorbs nutrients from the outside world and provides shelter to the algae).