Darlingtonia californica is a carnivorous plant, commonly known as the cobra lily, which traps insects in its hollow tubular leaves, whose top is flared into a hollow dome with a forked "tongue" that gives the species its common name. In late spring, they bear purple and yellow flowers that rise above the green cobra-like leaves. Darlingtonia are found only in wet meadows and bogs with acid soils low in nitrogen.
The park has a short loop trail through a peat bog area overlooking patches of Darlingtonia. It is the only Oregon state park dedicated to the protection of a single plant species.
