[The Buttercup Family in the Columbia River Gorge of Oregon and Washington]

Meadow-rues of the Columbia River Gorge of Oregon and Washington

The Genus Thalictrum

Western Meadowrue, Western Meadow-rue: Thalictrum occidentale (Synonyms: Thalictrum occidentale var. macounii, Thalictrum occidentale var. occidentale, Thalictrum occidentale var. palousense) - Western Meadowrue, Western Meadow-rue: Thalictrum occidentale (Synonyms: Thalictrum occidentale var. macounii, Thalictrum occidentale var. occidentale, Thalictrum occidentale var. palousense)

Western meadowrue (Thalictrum occidentale) blooming in open Oregon white oak - Douglas fir forest at Brooks Memorial State Park off US 97 near Satus Pass......May 13, 2019.

Western Meadowrue, Western Meadow-rue, Western Meadow Rue: Thalictrum occidentale (Synoyms: Thalictrum breitungii, Thalictrum occidentale var. macounii, Thalictrum occidentale var. megacarpum, Thalictrum occidentale, var. occidentale, Thalictrum occidentale var. palousense) -

Fendler's Meadow-rue, Many-fruited Meadowrue, Tall Western Meadowrue: Thalictrum polycarpum (Synonym: Thalictrum fendleri var. polycarpum) - Single observation from Wahkeena Falls in 2006.

Fewflower Meadow-rue, Few-flowered Meadowrue, Mountain Meadowrue: Thalictrum sparsiflorum (Synonym: Thalictrum sparsiflorum var. nevadense, Thalictrum sparsiflorum var. saximontanum) - Single voucher specimen from Multnomah Falls in 1916.

Paul Slichter E-mail