Petrophytum cinerascens (Piper) Rydb.
[= Petrophytum cinerascens]

Washington: Chelan County: [locality and coordinates withheld; status in Washington: G1G2/S1S2 (Endangered; WANHP)],
North-facing steep granite bedrock cliffs with thin soil or bare rock. Veg cover <10%. With scattered Bromus tectorum, Poa bulbosa, Penstemon deustrus, Epilobium brachycarpum, Salvia dorrii, & Poa secunda. Much of the cliffs along the highwasy burned in 2017 or 2018, but not this area. Locally common but scatter Locally common but scatters. Plants mat forming, some as large as 30 x 30 inches.

Walter Fertig 33176, Ibro Polovina
WTU, Accession: 423347, Barcode: WTU-V-061983