Cyperus niger Ruíz & Pav.
Annotated by Carex Working Group, 2013.

Oregon: Douglas: Cougar Creek Road (County Road 57C), milepost 9. 0.2 mile west of Bullock Bridge. 10.5 air miles northwest of Sutherlin. Elev. 250 ft.
43.47886° N, 123.48056° W,
Coordinate Source: OrlookId: 93444, StateProvince: Oregon, County: Douglas, LocName: Lat 43.47886 Deg; Lon -123.48056 Deg. OregonFlora 1994-2020 methodology.
Wet roadside ditch, saturated soil. Veronica americana, Rorippa nasturtium-aquaticum, Cyperus eragrostis, Solanum dulcamara, Rubus armeniacus Https://oregonflora.org/collections/individual/index.php?occid=977063.

Richard E. Brainerd; R.E. Brainerd 891, Jul 16, 2007
With N. Otting
OSC, Accession Number: OSC223471