Schoenus nigricans L.

CA
35
Flora Mexicana
Schoenis nigricans L.
Coahuila, Mexico. Cuatro Cienegas Basin ar Rio-Pozo
Mesquite, 1.5 rd miles E of Hwy in flats along Rio. area with
Schoenis, Salicornia, Suaeda mexicana, Scirpus, Helocharis,
Sporobolus, Distichlis, Samolus, Flavera etc.
Common, root base nearly black, heads light colored, forming
dense stands in saline-gypsum flats along stream; heads to 2 1
ft tall. Separate plants near stream.
near 26°55’N, 102°06’W 710 m. elev.
Henrickson 23191	6
Nov.
03836691