Goose Lake Wild Buckwheat, Strict Buckwheat
Eriogonum strictum var. anserinum
Synonyms: Eriogonum anserinum, Eriogonum flavissimum, Eriogonum ovalifolium ssp. flavissimum, Eriogonum proliferum ssp. anserinum, Eriogonum strictum ssp. anserinum, Eriogonum strictum ssp. proliferum var. anserinum, Eriogonum strictum var. flavissimum
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Goose Lake wild buckwheat as seen at left at Calamity Lookout, Malheur National Forest..........July 18, 2010. Proliferous buckwheat (Eriogonum strictum var. proliferum) is also present at this location.
The photo at right shows Goose Lake wild buckwheat blooming along the Fremont National Recreation Trail #160 on the east side of Crook Peak, Fremont-Winema National Forest......July 17, 2022.
Photo at right
of Eriogonum strictum var. anserinum from Blue Sky, Hart Mt. National
Antelope Refuge, July 25, 1996.
Characteristics:
Strict buckwheat is a mat forming subshrub to 60 cm tall. The
woody stems are prostrate to ascending. The flower stems are leafless above
the basal leaves, although a pair of tiny bracts may be found at the point where
the stem branches into the inflorescence. The leaves are mostly basal, with
the blades oval to ovate in shape tapering abruptly to long, thin petioles which
are 1-4 times longer than the blade.. The leaves range from 5-25 mm long and
the lower blade surface is gray-woolly, the upper surface being gray to green,
either woolly to sparsely haired.
The inflorescence is open and two to three branched, subtended
by 2 linear bracts. The involucres are tubular and bell-shaped and range from
3-5 mm long. Five short, erect triangular teeth are found at the distal end
of the involucral tube. The flowers are typically white, creamy, or occasionally
yellow as in the variety anserinum shown above. The individual flowers
range from 3-4 mm long and lack hairs on their outer surfaces.
Varieties of Strict Buckwheat:
variety anserinum :
Involucres tomentose. If glabrous, the involucres are congested. Leaves grayish
on both surfaces. Flowers yellow. Found along the east base of the Cascade Mts
from Chelan County, Washington south to south-central and southeastern Oregon,
northeastern California and Nevada.
variety glabrum
: Involucres congested and mostly glabrous. Leaves grayish on both surfaces.
Flowers white or cream. Found from Yakima, west Grant, and Douglas Counties
in Washington.
variety proliferum
: Involucres floccose to tomentose and congested. Flowers white or cream
Leaves grayish on both surfaces. Found across the range of the species but less
common within the range of the above varieties.
variety strictum : Involucres solitary and glabrous. Open inflorescence. Leaf blades greenish above, elliptic to ovate-elliptic inshape, and 1-2 cm long. Petioles 2-4 longer than blade. Flowers white, cream, light yellow or pink. Found in the Blue Mts. and Wallowa Mts. of southeastern Washington and northeastern Oregon and west-central Idaho.
Goose Lake wild buckwheat as seen at Calamity Lookout, Malheur National Forest.......July 18, 2010.
Habitat:
Found in both Ponderosa Pine forests and sagebrush, on sandy
or gravelly soil.
Range:
A widespread species, found from north-central Washington east
to Idaho and western Montana, south to Nevada, then west to the east slopes
of the Sierra of northern California and Cascades of the Pacific Northwest.
Additional examples of Goose Lake wild buckwheat as seen at about 9200' at the head of Little Blitzen Gorge, Steens Mountain, Harney County, OR.........September 1, 2011.
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At mid-slope, ridge west of Hot Springs Campground, Hart Mountain National Antelope Refuge..........June 9, 2016.
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Goose Lake wild buckwheat in bloom atop Crane Mountain, Fremont-Winema National Forest........August 1, 2020.
Eriogonum strictum var. anserinum from the cliffs of Diamond Head, Wenatchee N.F., July 5, 1996.
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Goose Lake wild buckwheat as seen along Reecer Creek Road (FS Road 35) near paved recreational (winter) pullouts about one mile downhill from the Wenatchee National Forest boundary..........July 8, 2012.
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Goose Lake wild buckwheat blooming (left and center) along the South Loop Road at the Rooster Comb, Steens Mountain..........July 9, 2014. The photo at right shows Goose Lake wild buckwheat blooming along the Steins Pillar Trail #837, Ochoco National Forest........June 26, 2017..
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Strict buckwheat as seen atop Pine Mountain (uphill from the observatory buildings), Deschutes National Forest.........July 12, 2017.
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Strict buckwheat as seen along the Rimrock Springs Trail #850, Crooked River National Grasslands.........June 24, 2017.
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Strict buckwheat (var. anserinum) as seen at left at Picture Rock
Pass in central Lake County, Oregon.........July 12, 1998. The photo at right shows the basal mat of leaves of strict buckwheat (var. anserinum) atop Light Peak, Fremont-Winema National Forest......June 29, 2019.
The photo above shows the tomentose involucre
of strict buckwheat (var. anserinum). Note the triangular lobes at the
upper end of the involucre. Photographed at Malheur National Wildlife Refuge........June
22, 1999.
Paul Slichter