Carex cespitosa is a species of perennial sedge of the genus Carex which can be found growing in tufts (caespitose), as the Latin specific epithet cespitosa suggests. The name is synonymous with Carex cespitosa f. retorta.
Carex leptalea is a species of sedge known by the common names bristly-stalked sedge and flaccid sedge. It is native to much of North America including most of Canada, the Dominican Republic, and the United States. It only grows in wetlands. This sedge produces dense clusters of thin stems up to 70 centimeters tall from a network of branching rhizomes. The thin, deep green leaves are soft, hairless, and sometimes drooping. The inflorescence is up to 16 millimeters long but only 2 to 3 millimeters wide, and is yellow-green in color. There are only a few perigynia on each spikelet, and they are green and veined.
- Carex leptalea subsp. harperi(Fernald) W.Stone - southeastern US from Texas and Florida north to Missouri and Pennsylvania
- Carex leptalea subsp. leptalea - widespread from Alaska east to Nunavut and south to California and Dominican Republic
- Carex leptalea subsp. pacificaCalder & Roy L.Taylor - Washington State, British Columbia, southeastern Alaska
Carex sect. Spirostachyae is a section of the genus Carex, containing 38 species of sedge. Species in Carex sect. Spirostachyae share a suite of features, including the short internodes of the primary rhizomes, the presence of an antiligule, the leaf-like, sheathing bract at the base of the inflorescence, the presence of three stigmas in female flowers, and the shape of the seeds.
Carex inops is a species of sedge known as long-stolon sedge and western oak sedge. It is native to northern North America, where it occurs throughout the southern half of Canada and the western and central United States.
Blo' Norton and Thelnetham Fens are a 21.3 hectare biological Site of Special Scientific Interest (SSSI) on the Norfolk/Suffolk border. Blo' Norton Fen is in the parish of Blo' Norton in Norfolk and Thelnetham Fen is in Thelnetham parish in Suffolk. It is a Nature Conservation Review site, Grade 2, and part of the Waveney and Little Ouse Valley Fens Special Area of Conservation, Thelnetham Fen is managed by the Suffolk Wildlife Trust and Blo' Norton Fen by the Little Ouse Headwaters Project (LOHP).
Fallowlees Flush is the name given to a Site of Special Scientific Interest (SSSI) in mid-Northumberland, England. The steeply sloping site has calcium-rich springs supporting vegetation rare in the county.
Carex viridula, known as little green sedge, green sedge, or greenish sedge, is a small flowering plant native to North America, Europe, Asia, and Morocco.
Carex arctogena is a member of the sedge family (Cyperaceae) which grows in high alpine areas. It is one of the few "bipolar" species; it has populations in Greenland, Scandinavia, Russia, Canada and southern South America. Plants in the far north and south appear to be genetically identical, having taken advantage of a similar niches on opposite ends of the globe.
Carex elata, tufted sedge, is a species in the genus Carex, native to all of Europe, the Atlas Mountains of Africa, Turkey, Iran and Central Asia. It prefers to grow with its roots in water. Its cultivar 'Aurea' has gained the Royal Horticultural Society's Award of Garden Merit.
Carex flava, called hedgehog grass, is a widespread species of sedge, native to the northern United States, Canada, Iceland, Europe, the Atlas Mountains in Africa, the Transcaucasus area, and parts of Siberia. It is the namesake of the Carex flava species complex.
Carex curvula, the Alpine sedge, is a species of flowering plant in the genus Carex, native to the Pyrenees, the Alps, the Carpathians, and the mountains of the Balkans. It has gone extinct in Germany. It propagates almost exclusively clonally, with some of its clonal colonies estimated to be 2,000 years old.
Carex rupestris, called the curly sedge and rock sedge, is a species of flowering plant in the genus Carex, native to temperate and subarctic North America, Greenland, Iceland, Europe, and Asia. It prefers to grow on rocky ledges.
Carex atrata, called black alpine sedge, is a widespread species of flowering plant in the genus Carex, native to Greenland, Iceland, and most of Europe, plus scattered locations across temperate Asia, including Anatolia, Siberia and the Himalaya, as far as Taiwan and Japan. Its chromosome number is 2n=52, with some variants reported, e.g. n2=54 for Greenland material.
Carex hostiana, the tawny sedge, is a species of flowering plant in the genus Carex, native to Europe and northeast Canada, and extinct in Massachusetts. It is a member of the Carex flava species complex.
Carex demissa is a species of sedge, native to Iceland, Macaronesia, all of Europe, and western Asia to the Himalayas and possibly Greenland. It has been introduced to eastern Canada, New Jersey, and Tasmania. It is a member of the Carex flava species complex.
Carex ornithopoda, called the bird's foot sedge, is a species of flowering plant in the genus Carex, native to most of Europe, and Anatolia. A variegated cultivar is commercially available.
Carex lachenalii, called the twotipped sedge and hare's foot sedge, is a species of flowering plant in the genus Carex, native to temperate and subarctic North America, Greenland, Iceland, Europe, and Asia, and the South Island of New Zealand. Its chromosome number is 2n=64, with some uncertainty.
Carex maritima, called the curved sedge, is a species of flowering plant in the genus Carex, with a bipolar distribution in mountains and cold regions. It dispersed in the Pleistocene from the northern to the southern hemisphere.
Carex liparocarpos is a species of sedge, native to southern Europe, and the Atlas and Caucasus regions. It is typically found growing in sandy steppes, dunes, riverine gravel deposits, and scree.
