Trifolium dichotomum Hook. & Arn.
Annotated by Halse, R., 2019.

Oregon: Benton: Corvallis vicinity; MacDonald Forest; on ridge between Alder Creek and Oak Creek. Elev. 1500 ft.
44.61406° N, 123.34317° W,
Datum: NAD83. Coordinate Source: OrlookId: 9120, StateProvince: Oregon, County: Benton, LocName: 11S 05W 18. OregonFlora 1994-2020 methodology.
Nearly undisturbed native grassland on steep s.-facing slope, on ridge between Alder Creek and Oak Creek; plants occasional in the meadow. Balsamorhiza deltoidea, Silene hookeri, Calochortus tolmiei Https://oregonflora.org/collections/individual/index.php?occid=1004308. Phenology: flowering.

Kenton L. Chambers; K.L. Chambers 5454, Jun 3, 1989
With Paul Hammond, Phil Hays
OSC, Catalog: OSC-V-070059, Accession Number: OSC170692