Stipa occidentalis Thurb. var. californica (Merr. & Burtt Davy) C.L. Hitchc.
[= Achnatherum occidentale ssp. californicum]
Annotated by Michael Curto, 9 Dec 2006. Sources: Vasc. Pl. Pacif. N. W. Part 1: 715. 1969.. Remarks: (OBI) Label Date: 2006.12.09
Basionym sensu stricto: Stipa californica Merrill et Burtt-Davy in H.M. Hall, Univ, Calif. Pub. Bot. 1: 61. 1902.
Gen: amplissimo. Sp.: amplissimo. Intrmnt. Fl. (1977): Not Included. Stipa occidentalis Thurber in S. Watson in C. King, Geol. Expl. 40th Par. 5: 380. 1871.
Gen: stricto. Sp.: amplissimo. Intrmnt. Fl. (1977): Not Included. Achnatherum occidentale (Thurber in S. Watson in C. King) Barkworth, Phytologia 74(1): 9. 1993.
Gen: amplissimo. Sp.: stricto. Man. Grasses U.S. (1951): Accepted. Intrmnt. Fl. (1977): Not Included. Stipa californica Merrill et Burtt-Davy in H.M. Hall, Univ. Calif. Pub. Bot. 1: 61. 1902.
Gen: amplissimo. Sp.: amplissimo. Infrasp.: stricto. Vasc. Pl. Pac. NW (1969): Accepted. Intrmnt. Fl. (1977): Not Included. Stipa occidentalis Thurber in S. Watson in C. King var. californica (Merrill et Burtt-Davy) C.L. Hitchcock, Vasc. Pl. Pacif. N.W. Part 1: 715. 1969.
Gen: stricto. Sp.: amplissimo. Infrasp.: stricto. Intrmnt. Fl. (1977): Not Included. Achnatherum occidentale (Thurber in S. Watson in C. King) Barkworth ssp. californicum (Merrill et Burtt-Davy in H.M. Hall) Barkworth, Phytologia 74(1): 10. 1993.

Idaho: Butte County: Craters of the Moon National Monument. "Quickshot" drainage Elev. 6030 ft.
UTM Zone 12, 292692E, 4818288N
Datum: NAD 83.
Upland rocky side slope; e. aspect; sagebrush comm. Phenology: Fertile.

N. D. Atwood 31417, Jun 19, 2006
With P. Wolken, A. Rowland, S. Popovich
CRMO, Accession: 223, Catalog: 4770