The 600-acre Triunfo Creek Park in Westlake Village  provides deep oak woodland, native grasslands and blankets of wildflowers in the springtime. The main feature of the park, the Pentachaeta Trail, is named after the Pentachaeta lyonii, a federally-listed endangered flower found in the park. The yellow, daisy-like flower is found only in Southern California, and blooms between April and June.