Atrichum tenellum (Rohl.) Bruch & Schimp.

Washington: Chelan County: Okanogan-Wenatchee National Forest, Chelan Ranger District. Okanogan-Wenatchee NF Fen Study, Poison Springs. From Hwy 97 turn on to the Methow Valley road and follow it about 5 mi to the Black Canyon Road (FD4010).¶Topography: toeslope. Light: partially shaded. Follow the 4010 all the way up to intersection with 8020 rd. Turn north onto 8020 and follow it approx. 5 mi to the headwaters of Poison Creek. The wetlands can be reached by walking down the unmaintained 145 spur to the creek and then walking up the creek to the wetland. ¶ Elev. 5800 ft.
UTM Zone 10U, 709364E, 5328467N; T30N R21E WM, Sec. 22.
Slope: 20%. Aspect: 270°.¶This wetland is high up near the top of the ridge, a valley that strangely runs parallel to the ridge and contains several spring sites. Even though it has a fair slope (20 percent), moss development has taken place. It is a long narrow fen. ¶Associated species: ABLA, PIEN, PICO CADI6, CASP5, LEGL, RILA, LOIN5, VAMY2, LICA2, SALIX, RHAL2, LUPO2, SYFOF, SETR, PLAQ2, SAOD2, PYAS, PLST4, PLST4, PYSE, ERANA3, ARMO4, CAREX, VEVI. Located Notes: plants were growing on a root wad near the very top edge of the wetland, at the wetland/upland interface. ¶ Substrate: terricolous.

Erica Heinlen 6499, Grace Kwak
WTU, Barcode: WTU-B-079487