Polygonum gabrielae Costea & Tardif
Annotated by Ben Legler, Aug 2017.

Oregon: Grant County: 7 miles south of Mount Vernon. Elev. 4500 ft.
T14S R30E S26
Datum: NAD 27. Uncertainty: 805 meters. Coordinate Source: TRS2LL.
Dry, barren, gravelly, north-facing serpentine slopes overlooking Laycock Creek. Perianth-segments white, with greenish midrib. Reference specimen for illustration in Revision of Flora of the Pacific Northwest WTU Herbarium, 2017. Phenology: Flowers. Isotype: Polygonum gabrielae Costea & Tardif. Published 2005. Brittonia 57(1): 1-27. 2005.

Arthur Cronquist 7330, Jun 29, 1953
WTU, Accession: 156220, Barcode: WTU-V-034829

Polygonum gabrielae Costea & Tardif
Annotated by Halse, R., 19 Apr 2006.

Oregon: Grant County: Laycock Creek, 7 miles south of Mt. Vernon. Elev. 1371.60 m.
44.327° N, 119.0829° W,
Uncertainty: 805 meters.
Isotype. Isotype of Polygonum gabrielae Costea & Tardif; perianth segments white with greenish midrib. Isotype.

Arthur Cronquist 7330, Jun 1953
OSC, Catalog: OSC86039

Polygonum gabrielae Costea & Tardif
Annotated by M. Costea; F. J. Tardif, 2003.

Oregon: Grant County: Overlooking Laycock Creek, 7 miles South of Mt. Vernon. Elev. 1372 m.
44.328080°, -119.08240°
Dry, barren, gravelly, north-facing serpentine slopes. Holotype. holotype.

A. J. Cronquist s.n., 29 Jun 1953
NY, Barcode: 00803958