Astragalus subglaber (Rydb.) Peck
[= Astragalus curvicarpus var. subglaber]
Annotated by R. C. Barneby, 1946. Remarks: Isotype (?); Probably collected 11 May 1882.

Oregon: John Day River.
Area too large to georeference.
[No collection date given on label]. Phenology: Flowers & Fruits. Isotype?: Homalobus subglaber Rydb.. Published 1924. Bulletin of the Torrey Botanical Club 51(1): 17. 1924.
Isotype?: Astragalus subglaber (Rydb.) Peck. Published 1941. A Manual of the Higher Plants of Oregon p. 444. 1941. Also in Madroño 6: 134. 1941.
Isotype?: Astragalus curvicarpus (Sheld.) Macbr. var. subglaber (Rydb.) Barneby. Published 1956. American Midland Naturalist 55(2): 487. 1956.

Thomas Howell s.n., [No collection date given]
WTU, Accession: 18944JWT, Barcode: WTU-V-001241