United States, Arizona, Pima County, Buenos Aires National Wildlife Refuge, Brown Wash.
31.7556 -111.5064 +-2000m. WGS84
T19S R08E S22 SE1/4
wash
mesquite, Acacia greggii, Celtis reticulata
Fruiting
M. Licher note June 2021: "Two McLaughlin specimens (4815, 4920) are problematic, despite that they key better to Cyperus aggregatus than any other taxon in the Sonoran Desert, based on spikelet and scale characters....When overall morphological gestalt and habitat are considered, it seems that these specimens may represent something other than C. aggregatus as typified by other collections."