[Biscuitroots and Desert Parsleys: The Genus Lomatium in the Columbia River Gorge of Oregon and Washington]

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium

Lomatium watsonii

Synonym: Lomatium frenchii

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's desert parsley blooming at the crest of the Columbia Hills, Columbia River Gorge..........March 24, 2017.

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)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 or could be creamy or whitish. 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.

In the Columbia River Gorge it is only found in the Columbia Hills.


Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's desert parsley as seen in the Columbia Hills of the Columbia River Gorge.........March 17, 2007.

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

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

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

The photo above shows the leaves and inflorescence of Watson's desert parsley. Columbia Hills.........February 26, 2005.

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

The photo above shows a close-up of the inflorescence of Watson's desert parsley. Columbia Hills..........February 26, 2005.

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's desert parsley blooming in the Columbia Hills Natural Area Preserve...........April 3, 2013.

Fruits of Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii) - Fruits of Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Fruits of Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii) - Fruits of Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Close-ups of the maturing fruits of Watson's desert parsley as seen along the Bickleton Highway between Bickleton, WA and Rock Creek..........May 17, 2014.

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii) - Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's desert parsley as seen at bloom in the Columbia Hills NAP.........March 25, 2016.

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii) - Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's desert parsley as seen in the Columbia Hills NAP.......March 4, 2020 (left) and February 12, 2020 (right).

Watson's Desert Parsley, Watson's Desert-parsley, Watson's Lomatium: Lomatium watsonii (Synonym: Lomatium frenchii)

Watson's desert parsley as seen from the Columbia Hills, Columbia River Gorge.............February 26, 2005.

Paul Slichter