Carex amplifolia is a species of sedge known by the common name bigleaf sedge. It is native to western North America from British Columbia to Montana to California, where it grows in wet and seasonally wet areas in coniferous forests.
Carex capitata is a species of sedge known by the common name capitate sedge. It has a circumboreal distribution including Norway, Russia, Siberia, Alaska, Canada and Greenland. Growing in wet places in boreal forests and mountain meadows in alpine climates.
Carex comosa is a species of sedge known as longhair sedge and bristly sedge. It is native to North America, where it grows in western and eastern regions of Canada and the United States, and parts of Mexico. It grows in wet places, including meadows and many types of wetlands. Tolerates deeper water than most common species and is good for retention basins. This sedge produces clumps of triangular stems up to 100 or 120 centimeters tall from short rhizomes. The inflorescence is up to 35 centimeters long and has a long bract which is longer than the spikes. It is a cluster of several cylindrical spikes. The scales over the fruits taper into long, thin awns.
Carex haydeniana is a species of sedge known by the common name cloud sedge.
Carex helleri is a species of sedge known by the common name Heller's sedge. It is native to eastern California and western Nevada, where it grows on rocky mountain slopes and in other habitats.
Carex illota is a species of sedge known by the common name sheep sedge. It is native to western North America, where it grows in wet places such as marshes and mountain meadows, from New Mexico and California north to Western Canada.
Carex luzulina is a species of sedge known by the common name woodrush sedge.
Carex mariposana is a species of sedge known by the common name Mariposa sedge.
Carex mertensii is a species of sedge known by the common name Mertens' sedge. It is native to western North America from Alaska to California to Montana, where it grows in moist and wet habitat in mountain forests and meadows. This sedge produces clumps of stems reaching maximum heights between 80 and 120 centimeters. The leaves are small; those toward the bases of the stems are reduced to sheaths only. The inflorescence is a densely packed, bullet shaped cluster of overlapping flowers, mainly hanging on long peduncles. Each inflorescence is generally 2 to 4 centimeters long. Each of the flowers has a dark-colored bract.
Carex neurophora is a species of sedge known by the common name alpine nerve sedge. It is native to the western United States, where it grows in wet mountain habitat such as meadows and streambanks. This sedge produces stems up to about 60 centimeters tall and inflorescences which are dense, oblong clusters of indistinguishable spikes of flowers.
Carex nigricans is a species of sedge known by the common name black alpine sedge.
Carex pellita is a species of sedge known by the common name woolly sedge.
Carex petasata is a species of sedge known by the common name Liddon sedge.
Carex phaeocephala is a species of sedge known by the common name dunhead sedge.
Carex praeceptorum is a species of sedge known by the common names early sedge and teacher's sedge.
Carex scoparia is a species of sedge known by the common names broom sedge and pointed broom sedge. It should not be confused with the unrelated grass species known as "broom sedge," Andropogon virginicus.
Carex spissa is a species of sedge known by the common name San Diego sedge. It is native to the southwestern United States in California, Arizona, and New Mexico, and far northern Mexico. It grows in wet places such as seeps and streambanks, sometimes on serpentine soils. This sedge looks somewhat like a cattail. It produces angled stems easily exceeding a meter in height surrounded by leathery green to reddish leaves up to about 1.2 meters long. The inflorescence is up to 80 centimeters long, with many long reddish brown flower spikes, each holding up to 300 developing fruits.
Carex straminiformis is a species of sedge known by the common name Shasta sedge.
Carex concinna is a species of sedge known by the common names low northern sedge, northern elegant sedge, beauty sedge, and beautiful sedge. It is native to northern North America, where it occurs across Canada and in high elevations in the northern contiguous United States.
Carex lemmonii, or Lemmon's sedge, is a plant in the sedge family, and is endemic to California. Carex albida is now considered a synonym, but was previously thought to be a separate species; such plants have the common name white sedge.
