Potamogeton illinoensis March 9, 2020December 24, 2019 by rcarr Scientific NamePotamogeton illinoensis MorongFamilyPotamogetonaceaeCommon Namesillinois pondweedEastern WashingtonNativeConservation StatusNotes Click on any image to enlarge it. Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014Along Hwy 23 ca. 6.7 mi S of Sprague, WA; N 47.23020 W 117.91049; Whitman Co.; 7/29/2014ca. 5.1 air mi N of Othello, WA at the S. end of Herman Lake near boat ramp; N 46.89752 W 119.20034; Adams Co., 9/19/2016ca. 5.1 air mi N of Othello, WA at the S. end of Herman Lake near boat ramp; N 46.89752 W 119.20034; Adams Co., 9/19/2016ca. 5.1 air mi N of Othello, WA at the S. end of Herman Lake near boat ramp; N 46.89752 W 119.20034; Adams Co., 9/19/2016ca. 5.1 air mi N of Othello, WA at the S. end of Herman Lake near boat ramp; N 46.89752 W 119.20034; Adams Co., 9/19/2016ca. 5.1 air mi N of Othello, WA at the S. end of Herman Lake near boat ramp; N 46.89752 W 119.20034; Adams Co., 9/19/2016 (peduncle on right, stem on left)