Petrophytum caespitosum (Nutt.) Rydb. var. caespitosum
[= Petrophytum caespitosum ssp. caespitosum]

Idaho: Boise County: Boise NF Rd 327 on north side of North Fork Boise River 0.4 mi E of Bear River, 1.0 mi E of NF Rd 384, ca 18 airmi ENE of Idaho City Elev. 1390 m.
43.894° N, 115.483° W
Coordinate Source: Specimen Label.
crumbling granite outcrop in very open forest of ponderosa pine and douglas-fir Very local, matted on rocks, not yet in bloom.

Barbara Ertter 16333, Jul 1, 1998
With James R. Shevock
CIC, Accession: 51807