The Pacific Northwest, and adjacent areas
Moist meadows, damp forests; between 3,500 and 10,500 feet
Pinnately divided into narrow, lobed segments. Blade up to 10 inches long
June to September
Leaves of ligusticum grayi grow mainly at the base, and are divided two or three times into narrow, lobed leaflets, which have pointed tips. Plants usually have a single stem leaf, at the point where the stem branches; this has fewer, narrower segments and is much shorter, but shows a similar pattern of division. Leaves, stem and inflorescence are hairless.
Like most apiaceae species the plant produces a compound umbel of tiny flowers, each formed of five white petals around a greenish pistil and five protruding white stamens. Petals have a notch at the tip and a groove down the middle. The 5 to 18 rays are unequal in length (varying between 0.5 and 2 inches), as are the pedicels supporting the individual flowers. There are no leafy bracts at the base of the inflorescence.