[Biscuitroots and Desert Parsleys: The Genus Lomatium East of the Cascade Mts. of Oregon and Washington]

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip

Lomatium nudicaule

Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

Barestem desert parsley as seen along the Round Mountain South Trail #805 about one-half way between the south trailhead at FS Rd #42 and Round Mt., Ochoco National Forest.........May 28, 2016.

Characteristics:

Bare-stem desert parsley is a fairly easy to identify desert parsley (at least in the Pacific Northwest) due to the erect, solitary to several hollow stems which inflate or increase greatly in diameter directly beneath the inflorescence. The naked stems range from 20-90 cm high and are generally both glabrous and blue-glaucous. The firm leaves are found only near the base and are ternately or ternate-pinnately 1-3 times compound with 3-30 veiny, often petiolate lanceolate to ovate leaflets from 2-9 cm long and 1-6 cm wide. The leaflet margins may be entire or may be toothed at the tips.

The inflorescence is an umbel of numerous small umbelets which are usually widely spaced when in flower. The stems which hold the umbelets in the umbel extend unequally from 6-20 cm. The flowers are yellow. The fruit is 7-15 mm long, oblong to elliptic in shape, narrowing to a short beaklike tip. The wings of the fruit are up to one-half as wide as the body.


Habitat:

Bare-stem desert parsley maybe found from the lowlands to moderate elevations in the mountains on dry, open or sparsely wooded places, and is often mixed with sagebrush or ponderosa pine.


Range:

Bare-stem desert parsley may be found from southern British Columbia south along both sides of the Cascade Mts. through Washington and Oregon to central California and east to southwestern Alberta, western and southern Idaho, and western Utah.


Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

The photo above shows bare-stem desert parsley as seen along Cowiche Mill Road several miles west of Yakima, WA.........March 28, 2007. The inflated upper stems are not visible below each inflorescence yet (as the plants are very young) but the distinctive, broad, glaucous leaflets are easily seen.

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum) - Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

The photos above show two views of barestem desert parsley as seen along Cowiche Mill Road to the west of Yakima, WA.........March 23, 2008.

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum) - Habitat of Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

Ripe seed head of barestem desert parsley as seen at left in vernally moist scablands at Brooks Memorial State Park........October 10, 2018. The photo at right shows the habitat of barestem desert parsley observed in a swale above the north rim of Rock Creek canyon, about one-quarter mile south of the southern boundary of the Simcoe Mountains Unit of the Klickitat Wildlife Area.....April 15, 2021.

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum) - Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

The photo at left shows bare-stem desert parsley. The inflated upper stems are visible below each inflorescence as well as the broad, glaucous leaflets. The photo at right shows bare-stem desert parsley as seen on scablands between FS Road 4040 and the North Fork Crooked River Wild and Scenic River.........May11, 2017.

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

Leaf scars on the crown of bare-stem desert parsley as seen along Oak Creek Road, Oak Creek Wildlife Area......June 8, 2019.

Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum) - Bare-stem Desert Parsley, Barestem Biscuitroot, Indian-consumption-plant, Pestle Parsnip: Lomatium nudicaule (Synonyms: Cogswellia nudicaulis, Lomatium platyphyllum)

Bare-stem desert parsley as seen at left at the Bickleton Ridge Unit of the Klickitat Wildlife Area........May 11, 2017. The photo at right shows bare-stem desert parsley in bloom along What Road near the DNR-Wenatchee National Forest boundary, Yakima County, WA......May 24, 2019.

Paul Slichter