[Buckwheats: The Genus Eriogonum in the Columbia River Gorge of Oregon and Washington]

Arrowleaf Buckwheat, Northern Buckwheat, Smooth Arrow-leaf Wild Buckwheat

Eriogonum compositum var. leianthum

Synonym: Eriogonum tolmieanum

Portion of the inflorescence of Arrowleaf Buckwheat, Northern Buckwheat, Smooth Arrow-leaf Wild Buckwheat: Eriogonum compositum var. leianthum (Synonym: Eriogonum tolmieanum)

Close-up of the inflorescence of northern buckwheat (var. leianthum) as seen in rockfall along along Rock Creek Road about one-half mile north of Washington Highway SR14 in Klickitat County.........April 25, 2010. The stems of this variety are mostly glabrous while the inflorescence ranges from lightly to moderately pubescent (as seen here), but not densely woolly (lanate) as var. compositum is.

Inflorescence of Arrowleaf Buckwheat, Northern Buckwheat, Smooth Arrow-leaf Wild Buckwheat: Eriogonum compositum var. leianthum (Synonym: Eriogonum tolmieanum) - Basal leaf of Arrowleaf Buckwheat, Northern Buckwheat, Smooth Arrow-leaf Wild Buckwheat: Eriogonum compositum var. leianthum (Synonym: Eriogonum tolmieanum) - Glabrous stem of Arrowleaf Buckwheat, Northern Buckwheat, Smooth Arrow-leaf Wild Buckwheat: Eriogonum compositum var. leianthum (Synonym: Eriogonum tolmieanum)

Close-ups of the inflorescence, arrowhead-shaped leaf, and mostly glabrous stem of northern buckwheat (var. leianthum) as seen in rockfall along along Rock Creek Road about one-half mile north of Washington Highway SR14 in Klickitat County.......April 25, 2010.

Arrowleaf Buckwheat, Northern Buckwheat, Smooth Arrow-leaf Wild Buckwheat: Eriogonum compositum var. leianthum (Synonym: Eriogonum tolmieanum)

Northern buckwheat (var. leianthum) as seen in rockfall along along Rock Creek Road about one-half mile north of Washington Highway SR14 in Klickitat County.........April 25, 2010.
Paul Slichter