Physcia stellaris (L.) Nyl.
Annotated by L. Geiser, 31 Oct 2017.

Idaho: Idaho County: Payette National Forest: Hells Canyon National Recreation Area: Hells Canyon Wilderness: S side of Pittsburg Ck., 0.25 mi from the Snake R./Pittsburg Ck. confluence. Elev. 1278 ft.
45.62712° N, 116.4757° W; T2N R51E Sec 29SE
Coordinate Source: USFS plot database.
Sparse small hackberry, about 10' tall populate the N-facing slope. Larger, taller hackberry, up to 12" dbh and 30' tall-- fill the draw and are overtopped by Himalayan blackberry. Some of the hackberry in the draw have moss. About 15% of the moss on at least one tree bole was dying. Disturbance heavy. Riparian vegetation is choked and overgrown by Himalayan blackberry, which has filled the draw. Some cheatgrass (26-50% cover) and other weeds. Curiously, lack of cow grazing may favor blackberry. Pittsburg Formation (sedimentary and metamorphosed intrusive and volcanic rocks). Slope 100%. Aspect 360°. Abundance code: 4-1. Spot Tests: Medulla K-.

A. Mikulin s.n., Oct 25, 2000
With L. Geiser
OSC, Barcode: OSC-M-299295