[Desert Parsleys East of the Cascade Mountains of Oregon and Washington]

Broad-fruit Lomatium, Nine-leaf Lomatium, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley

Lomatium simplex ssp. platycarpum

Synonyms: Lomatium platycarpum, Lomatium triternatum var. simplex

Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex var. simplex (Synonyms: Lomatium platycarpum, Lomatium triternatum ssp. platycarpum)

The photo above shows nine-leaf desert parsley (variety simplex) as seen on BLM lands along South Twickenham Road about one mile south of the John Day River in central Oregon.........April 8, 2007.

Characteristics:

Nine-leaf desert parsley is a perennial wildflower with one to a few erect stems arising from 20-80 cm high from a narrowly thickened, elongate taproot. The herbage is covered with fine, short but stiff hairs. The leaves are mostly basal, although some may be present at the middle or upper parts of the stems. The leaves are ternately or ternate-pinnately compound 2-3 times, and cleft into long, narrow segments or leaflets from 1-10 cm long.

The inflorescence is an umbel with 6-18 branches of unequal length supporting the umbellets, these stems measuring up to 2-10 cm long. The flowers are yellow. The fruits are broadly elliptic with broad wings about as wide as the body of the fruit. The fruits measure from 7-15 mm long and 3-7 mm wide. The bracts below the umbelets are inconspcuous, filiform in shape when present, or are absent.


Similar Species:

Nine-leaf desert parsley could be confused with slender-fruited desert parsley (L. leptocarpum). The latter species has roots that have elongated or beaded swellings while the former has thick roots which lack the swellings. The latter species is also often 4 times pinnately compound with shorter leaf segments, while the nine-leaf desert parsley is tri-pinnately compound with longer, leaf segments. Nine-leaf desert parsley could also be confused with some varieties of the other nine-leaf desert parsley (L. triternatum) of which it once was classified with.


Habitat:

Nine-leaf desert parsley may be found on open slopes and in dry to fairly moist soil in meadows from the lowlands to moderate elevations in the mountains.


Range:

Nine-leaf desert parsley may be found from southern British Columbia south through Washington and Oregon on both sides of the Cascade Mts. to California and east to southern Alberta, Montana, Colorado and Utah.


Broad-winged fruits of Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex var. simplex (Synonyms: Lomatium platycarpum, Lomatium triternatum ssp. platycarpum)

The photo above shows the broad fruits of nine-leaf desert parsley (L. simplex var. simplex or L. triternatum ssp. platycarpum) as seen at Blue Basin Overlook, John Day Fossil Beds National Monument..........May 23, 2003. The fruits of the other two varieties of this species are much narrower.

Involucel bracts of Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex var. simplex (Synonyms: Lomatium platycarpum, Lomatium triternatum ssp. platycarpum) - Umbel of Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex var. simplex (Synonyms: Lomatium platycarpum, Lomatium triternatum ssp. platycarpum)

These photos show a close-up of the long, narrow bracts subtending the involucels (left) and upper surface of the involucels (right) of downy desert parsley as seen on slopes above Wilson Creek, a BLM site about 10 miles southwest of Wilbur, WA.........April 30, 2007.

Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex var. simplex (Synonyms: Lomatium platycarpum, Lomatium triternatum ssp. platycarpum) - Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex ssp. platycarpum (Synonyms: Lomatium platycarpum, Lomatium triternatum var. simplex)

The photo above left shows downy desert parsley as seen on slopes above Wilson Creek, a BLM site about 10 miles southwest of Wilbur, WA..........April 30, 2007. The photo at right shows great basin desert parsley as seen on slopes above the east bank of the John Day River at Cottonwood Canyon State Park about one mile downstream of Oregon Highway 206..........April 9, 2016.

Broad Fruit Lomatium, Nine-leaf Desert Parsley, Downy Desert Parsley, Great Basin Desertparsley, Great Basin Desert Parsley: Lomatium simplex ssp. platycarpum (Synonyms: Lomatium platycarpum, Lomatium triternatum var. simplex)

Broad-fruit lomatium blooming in grasslands atop the rim of the John Day River canyon north of the day use area of the Cottonwood Canyon State Park, Sherman County, Oregon.........March 16, 2016.

Paul Slichter