Stanley D. Jones

Cyperus pseudothyrsiflorus is a plant species native to Nuevo León, New Mexico and Texas, It occurs in cultivated fields and other disturbed areas at elevations of less than 1000 m (3400 feet). Cyperus pseudothyrsiflorus is a perennial herb spreading by underground rhizomes. Stems are triangular in cross-section, up to 40 cm (16 inches) tall. It is a member of Cyperus, subgenus Cyperus, section Umbellati. It was first formally described as a new variety of C. uniflorus by Georg Kükenthal in 1937, but was promoted to an independent species in 1997. It is very similar to C. uniflorus, which is

Cyperus floribundus, also called Rio Grande sedge, is a species of sedge that is native to southern parts of North America.

Carex perdentata, the Texas meadow sedge, is a species of flowering plant in the family Cyperaceae, native to the U.S. states of Oklahoma and Texas. A perennial of savannas and open mesic forests, it can be used as a grass substitute in lawns, but requires a great deal of water.

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