Lomatium cookii

This is a perennial herb growing or tall. The leaves are located around the base of the stem. They have blades up to long that are intricately dissected into many small, narrow lobes. The inflorescence is an umbel bearing clusters of yellow flowers on several ascending branches. The fruit is roughly by wide and is lined with thick, corky wings. ==Endangered species==

This plant was added to the Endangered Species List in 2002 because it is rare and its habitat is being destroyed and degraded. Vernal pools have nearly disappeared from an area where they were once widespread in this section of Oregon as the land has been consumed for agriculture, pastures, residential tracts, industrial operations, and commercial areas. Land not directly destroyed has been altered in such a way that its hydrology no longer supports vernal pool ecosystems. The blacktop of roads and parking lots produces runoff, and irrigation and ditches distribute water differently. Additionally, habitat fragmentation has occurred as the land was sectioned for use and bisected by roads and other structures. In 2002 the plant was known from only 15 sites in Jackson County and 21 sites in Josephine County. ==References==