Pinus albicaulis Engelm. × Pinus flexilis James
Remarks: Suspected hybrid.
Montana: Summit of Bullock Hill in the Tizer Basin; 200 feets east of F. S. Triangulation Station.
Growing with both P. flexilis and P. albicaulis.
J. H. Rumely s.n., Oct 17, 1964
With J. E. Ericson
WTU, Accession: 235925