Lathyrus vestitus Nutt. ssp. bolanderi (S. Wats.) C.L. Hitchc.
[= Lathyrus vestitus var. vestitus]
Annotated by Steven Broich, Sep 1982. Remarks: Oregon State University (Photograph taken).

Washington: King County: [locality and coordinates withheld; status in Washington: G5TNR/S1 (Endangered; WANHP)],
Phenology: Flowers & Fruits. Isotype: Lathyrus ochropetalus Piper. Published 1918. Proceedings of the Biological Society of Washington 31: 189. 1918.
Isotype: Lathyrus vestitus Nutt. ssp. ochropetalus (Piper) Hitchc.. Published 1952. University of Washington Publications in Biology 15: 19. 1952. (Alternate title: "A revision of the North American species of Lathyrus.")
Isotype: Lathyrus vestitus Nutt. var. ochropetalus (Piper) Isley. Published 1992. Madroño 39(2): 96. 1992.

C. V. Piper 482, June 1891, July 1891
WTU, Accession: 11082, Barcode: WTU-V-000422