[Sagebrush: The Genus Artemisia East of the Cascade Mts. of Oregon and Washington]
Little Sagebrush, Low Sagebrush
Artemisia arbuscula ssp. arbuscula
Synonyms: Artemisia arbuscula var. arbuscula, Artemisia tridentata ssp. arbuscula, Seriphidium arbusculum
Low sagebrush (ssp. arbuscula) as seen growing in vernally moist soils in Logan Valley just west of Big Creek Campground, Malheur National Forest........July 1, 2010.
An
individual leaf from low sagebrush (ssp. arbuscula). Note the triangular shape of the bladewhich
tapers to the petiole, the shallow lobes at the tip, and the dense covering of
whitish hairs. Photographed on the rim above Kiger Gorge and Mosquito Creek on
the Steens Mt..........July 17, 2000.
Characteristics:
Low sagebrush is sometims known as scabland sagebrush. It is
a low, densely gray-haired shrub with a pungent sagebrush taste and odor from
10-40 cm high. It is often spreading at the base with numerous erect, leafy
shots rising upwards. The leaves range from 1-4 cm long (typically 1.5 cm long
or less) with 3-5 shallow to deeply cleft, broad segments (See photo at right.).
The blades are wedge-shaped, or triangular, with the broadest segment at the
distal end. The leaves of the upper stems are often linear to lanceolate in
shape with entire margins, lacking the thin lobed segments.
The inflorescence is a congested, narrow spike rarely more than
1.5 cm wide. The narrow involucre ranges from 3-5 mm highand 3-4 mm wide, with
the middle and outer bracts covered with dense, white hairs. The flower heads
are discoid, with 4-15 flowers per head. Low sagebrush flowers from June to
September.
Subspecies of Low Sagebrush:
ssp. arbuscula -
ssp. longicaulis -
ssp. thermopola -
Habitat:
Low sagebrush may be found in shallow soils on dry, rocky sites
in the plains and foothills. It may be found to elevations as high as
3300 meters.
Range:
Low sagebrush may be found to the east of the Cascade Mts. from
central Washington and central Oregon south to California and east through Idaho
to western Montana, western Wyoming, northern Colorado, Utah and Nevada.
Low sagebrush beginning to bloom atop Lookout Mountain, Ochoco National Forest...........August 10, 2014.
Low sagebrush with flower head buds forming along forest road #1647 at the eastern edge of Logan Valley, Malheur National Forest...........July 18, 2010.
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Additional views of low sagebrush beginning to bloom along Forest Road #1647 in southeastern Logan Valley, Malheur National Forest...............August 3, 2011.
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Several old, gnarled low sagebrush as seen on the rocky Steens Mountain summit ridge near the head of Kiger and Mosquito Gorges........July 11, 2014.
Leaf of low sagebrush observed on scablands above the north side of Dry Creek about one mile upstream from Wenas Creek, DNR lands in Yakima County, WA.....May 29, 2022.
The inflorescence of low sagebrush (ssp. arbuscula).
Low sagebrush (ssp. arbuscula) as seen at an elevation of 8950' at the head of Kiger Gorge
on Steens Mt., southeastern Oregon........August 4, 1995.
Paul Slichter