[Desert Parsleys East of the Cascade Mts.]

Watson's Desert Parsley

Lomatium watsonii

A leaf of Watson's desert parsley, Stacker Butte, Columbia Hills in the Columbia River Gorge.............May 18, 2002.

The photo at right shows the fruits of Watson's desert parsley.
Characteristics:

Watson's desert parsley is a puberulent to nearly glabrous perennial, somewhat similar in appearance to Lomatium cous, with one to several stems arising from 5-15 cm from an elongated, stout, to somewhat tuberous rootstock. The stems often lack leaves. The leaves are bipinnate, and including the petioles are 5-8 cm long. The segments of the leaflets are linear in shape with obtuse tips, and range from 2-4 mm long (See photo below.).

Each umbel consists of 4-8 rays of unequal length, the longest measuring from 2-3 cm long (See photo at right.) The involucel consists of a ring of united bracts, the individual bracts somewhat broadly triangular in outline. The flowers are yellowish. The fruits are ovate in shape and 6-7 mm long and up to 4 mm wide with wings less than half as wide as the body of the fruit. The fruits are finely puberulent or occasionally glabrous.
Habitat:

Watson's desert parsley may be found in arid, open, often rocky hillsides. It is often found amongst sagebrush.


Range:

Watson's desert parsley may be found east of the Cascade Mts. from southern Kittitas, Yakima, and Klickitat counties in Washington to Jefferson county in north-central Oregon.


Watson's desert parsley from Stacker Butte in the Columbia Hills, Columbia River Gorge.............April 18, 2002.

A leaf of Watson's desert parsley, Stacker Butte, Columbia Hills in the Columbia River Gorge.............May 18, 2002.

Paul Slichter