Toxicodendron radicans var. rydbergii March 4, 2020December 24, 2019 by rcarr Scientific NameToxicodendron radicans (L.) Kuntze var. rydbergii (Small ex Rydb.) ErskineFamilyAnacardiaceaeCommon Namespoison-ivy, western poison-ivyEastern WashingtonNativeConservation StatusNotes Click on any image to enlarge it. Along Hwy 22 SE of Toppenish, WA 0.1 mi SE of Plank Rd; 46.30840N 120.20711W – Yakima Co. – 5/30/2010Along Hwy 22 SE of Toppenish, WA 0.1 mi SE of Plank Rd; 46.30840N 120.20711W – Yakima Co. – 5/30/2010Near the south edge of Kepple Lake on the Turnbull National Wildlife Refuge S. of Cheney, WA – Spokane Co. – 4/27/2003Rock Crk Rd between Bickleton/Goldendale, WA Hwy and Hwy 14. Ca 100 yds N of Bridge at Cross Crk (Roscoe).; N 45.80584 W 120.50885; Klickitat Co.; 4/10/2011Along Hwy 22 SE of Toppenish, WA 0.1 mi SE of Plank Rd; 46.30840N 120.20711W – Yakima Co. – 5/30/2010Near the south edge of Kepple Lake on the Turnbull National Wildlife Refuge S. of Cheney, WA – Spokane Co. – Late fallAlong cliff base just S of Lower Granite Dam on the Snake River; N 46.65687 W 117.43178; Garfield Co., WA; 4/24/2015Rock Crk Rd between Bickleton/Goldendale, WA Hwy and Hwy 14. Ca 100 yds N of Bridge at Cross Crk (Roscoe).; N 45.80584 W 120.50885; Klickitat Co.; 4/10/2011Along Rogersburg rd 0.68 mi E of Joseph Crk rd; 1.3 air mi SW of Rogersburg, WA; N 46.06173 W 116.99304; Asotin Co.; 6/4/2018Along Rogersburg rd 0.68 mi E of Joseph Crk rd; 1.3 air mi SW of Rogersburg, WA; N 46.06173 W 116.99304; Asotin Co.; 6/4/2018