Trillium petiolatum January 10, 2025December 24, 2019 by rcarr Scientific NameTrillium petiolatum PurshFamilyMelanthiaceaeCommon Namespurple trillium, purple wakerobinEastern WashingtonNativeSynonymsNoneConservation StatusNotes Click on any image to enlarge it. Along Deadman Cr. near the entrance to Mt. Spokane State Park – Spokane Co., WA – 5/4/2007 Along Deadman Cr. near the entrance to Mt. Spokane State Park – Spokane Co., WA – 5/4/2007 East edge of South Twin Lake W of Inchelium, WA; N 48.269084 W 118.375547 – Ferry Co. – 5/11/2011 East edge of South Twin Lake W of Inchelium, WA; N 48.269084 W 118.375547 – Ferry Co. – 5/11/2011 Along Deadman Cr. near the entrance to Mt. Spokane State Park – Spokane Co., WA – 5/4/2007 Along Deadman Cr. near the entrance to Mt. Spokane State Park – Spokane Co., WA – 5/4/2007 East edge of South Twin Lake W of Inchelium, WA; N 48.269084 W 118.375547 – Ferry Co. – 5/11/2011 1.7 mi NE from 1st rail crossing on Anderson Rd (off Cheney-Spokane Hwy); 47 30 682N 117 30 968W – Spokane Co., WA – 5/31/2009 1.7 mi NE from 1st rail crossing on Anderson Rd (off Cheney-Spokane Hwy); 47 30 682N 117 30 968W – Spokane Co., WA – 5/31/2009 East edge of South Twin Lake W of Inchelium, WA; N 48.269084 W 118.375547 – Ferry Co. – 5/11/2011 East edge of South Twin Lake W of Inchelium, WA; N 48.269084 W 118.375547 – Ferry Co. – 5/11/2011