Rhamnus californica Eschsch. ssp. tomentella (Benth.) C.B. Wolf
[= Frangula californica ssp. tomentella]
Annotated by Callahan, F., 2010.

Oregon: Jackson County: South of Blackwell Hill, Harris Gulch. Elev. 449.88 m.
42.3532° N, 123.0084° W,
Uncertainty: 805 meters.
Plants to 1+ m. in height.

Frank Callahan RCT-HG-1, Jul 7, 2010
OSC, Catalog: OSC229415

Rhamnus californica Eschsch. ssp. tomentella (Benth.) C.B. Wolf
[= Frangula californica ssp. tomentella]
Annotated by Callahan, F., 12 Jan 2014.

Oregon: Jackson County: south of Medford.
42.2707° N, 122.8762° W,
Uncertainty: 4828 meters.

W.E. Lawrence s.n., Aug 1918
OSC, Catalog: OSC72950

Rhamnus californica Eschsch. ssp. tomentella (Benth.) C.B. Wolf
[= Frangula californica ssp. tomentella]
Annotated by Frank T. Callahan, 1 Dec 2014.

Oregon: Jackson County: south of Medford
this is a scan of sheet 72950 at OSC herbarium; note by Frank Callahan "This represents a new range extension in Oregon" Phenology: vegetative.

Wm. E. Lawrence 2171, Aug 13, 1918
SOC, Accession: 24004

Rhamnus californica Eschsch. ssp. tomentella (Benth.) C.B. Wolf
[= Frangula californica ssp. tomentella]
Annotated by Frank T. Callahan, 1 Dec 2014.

Oregon: Jackson County: south of Medford
not a specimen; this is a scan of specimen 72950 at Oregon State University. Frank Callahan reports this as a range extension in Oregon

Wm. E. Lawrence 2171, Aug 13, 1918
SOC, Accession: 25875