| Scientific Name | Listera cordata (L.) R. Br. |
| Family | Orchidaceae |
| Common Names | heart-leaf listera, heart-leaf twayblade |
| Eastern Washington | Native |
| Synonyms | |
| Conservation Status | |
| Notes |
Click on any image to enlarge it.
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
FR 302 ca 1 mi N of Roosevelt Cedar Grove near jct with rd to Granite Pass; 48.78482N 117.0531W – Pend Oreille, Co., WA – 6/20/2010 
Along Hwy 6 ca. 2 mi S of the Benewah Co. border just N of the Giant White Pine Campground; N 47.01095 W 116.67822; Latah Co., ID; 6/20/2011 
Along Hwy 6 ca. 2 mi S of the Benewah Co. border just N of the Giant White Pine Campground; N 47.01095 W 116.67822; Latah Co., ID; 6/20/2011 
Along Hwy 6 ca. 2 mi S of the Benewah Co. border just N of the Giant White Pine Campground; N 47.01095 W 116.67822; Latah Co., ID; 6/20/2011
Listera caurina
| Scientific Name | Listera caurina Piper |
| Family | Orchidaceae |
| Common Names | northwestern twayblade |
| Eastern Washington | Native |
| Synonyms | |
| Conservation Status | |
| Notes |
Click on any image to enlarge it.
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Along Hwy 6 ca. 2 mi S of the Benewah Co. border just N of the Giant White Pine Campground; N 47.01095 W 116.67822; Latah Co., ID; 6/20/2012 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Corner of F.R. 030 with Skyline Drive; N 46.23565 W 117.76894 – Columbia Co., WA – 7/22/2011 
Ca. 0.11 mi E of FR 40 along FR 140 (Stentz Spgs); S of Pomeroy, WA; N 46.22748 W 117.57906; Garfield Co.; 7/18/2012
Listera sp
| Scientific Name | Listera sp |
| Family | Orchidaceae |
| Common Names | listera, twayblade |
| Eastern Washington | Native |
| Synonyms | |
| Conservation Status | |
| Notes |
Click on any image to enlarge it.
Skookum Lk rd. at 48 24 787N 117 06 091W – Pend Oreille Co., WA 
Skookum Lk rd. at 48 24 787N 117 06 091W – Pend Oreille Co., WA 
Meadow Lk rd to Ione; 48 44 004N 117 34 108W (1.4 m w of FR 430) – Pend Oreille Co., WA