Cyperus is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions.
Rhynchospora is a genus of about 400 species of sedges with a cosmopolitan distribution. The genus includes both annual and perennial species, mostly with erect 3-sided stems and 3-ranked leaves. The achenes bear a beak-like tubercule and are sometimes subtended by bristles. Many of the species are similar in vegetative appearance, and mature fruits are needed to make a positive identification.
Cyperus giganteus is a perennial herbaceous plant. It belongs to the genus Cyperus. Its native range extends from Jalisco in west-central Mexico as far south as Uruguay, and also grows on some islands in the Caribbean. The species is sparingly naturalized in eastern Texas and southern Louisiana.
Cyperus polystachyos, also known as Pycreus polystachyos, and also called manyspike flatsedge in the US, or bunchy sedge, coast flatsedge, many-spiked sedge or Texas sedge in Australia, is a herbaceous species in the family Cyperaceae, widespread in tropical and subtropical areas around the world, sometimes extending its range into temperate regions.
Cyperus difformis is a species of sedge known by several common names, including variable flatsedge, smallflower umbrella-sedge and rice sedge. This plant is native to southern Europe, most of Africa and Asia, and Australia, and it is naturalized in other areas of the world, including large parts of the Americas.
Cyperus fuscus is a species of sedge known by the common name brown galingale, or brown flatsedge. This plant is native to much of Europe, Asia and North Africa from England, Portugal and Morocco east to China and Thailand. It is an introduced species in North America, where it is naturalized in widely scattered locations in the United States and Canada.
Cyperus odoratus is a species of sedge known by the common names fragrant flatsedge and rusty flatsedge. This plant can be found in much of the tropical and warm temperate world, including South, Central, and North America, Southeast Asia, some Pacific Islands, Australia, New Guinea, Madagascar, and central Africa. It is a plant of wet, muddy areas, including disturbed and altered sites. This species is quite variable and may in fact be more than one species included under one name. In general this is an annual plant approaching half a meter in height on average but known to grow much taller. It usually has some long, thin leaves around the base. The inflorescence is made up of one to several cylindrical spikes attached at a common point. Each of the spikes bears a large number of flat, oval-shaped spikelets. Each spikelet is usually light brown to reddish-brown and has a few to over 20 flowers. Each flower is covered by a tough, flat bract with a visible midvein. The fruit is a flat achene less than two millimeters long.
Cyperus laevigatus is a species of sedge known by the common name smooth flatsedge.
Eulophia alta is a species of orchid, known as the wild coco. It is widespread across tropical and subtropical parts of Africa, South America, Central America, Mexico and the West Indies, as well as the southeastern United States.
Schoenoplectus pungens is a species of flowering plant in the sedge family known as common threesquare, common three-square bulrush and sharp club-rush. It is a herbaceous emergent plant that is widespread across much of North and South America as well as Europe, New Zealand and Australia.
Barleria prionitis is a shrub in the family Acanthaceae, native to Island and Mainland Southeast Asia, China, the Indian Subcontinent, the Arabian Peninsula and northeastern Africa. It is widely spread as an ornamental and weed, occurring in naturalised populations around the world. It used not only as an ornamental but also as a hedge and extensively as a component of folk medicines. As a weed it is regarded as problematic in many areas.
Tillandsia utriculata, commonly known as the spreading airplant or the giant airplant, is a species of bromeliad that is native to Florida and Georgia in the United States, the Caribbean, southern and eastern Mexico, Central America, and Venezuela.
Carex hirta, the hairy sedge or hammer sedge, is a species of sedge native across Europe. It has characteristic hairy leaves and inflorescences, and is the type species of the genus Carex.
Dioscorea pentaphylla is a species of flowering plant in the yam family known by the common name fiveleaf yam. It is native to southern and eastern Asia as well as New Guinea and northern Australia. It is widely cultivated as a food crop and naturalized in Cuba and on several island chains in the Pacific.
Cyperus laxus is a sedge species in the Cyperaceae. It is native to tropical regions of the Western Hemisphere and also to Africa. The species is reportedly naturalized in Assam and the Andaman and Nicobar Islands.
Cyperus distans, also known as slender cyperus, is a species of sedge native to tropical and subtropical wetlands in sub-Saharan Africa, Asia, Madagascar, New Guinea, Australia, Latin America, the West Indies, the southeastern United States and various oceanic islands.
Cyperus betchei is a sedge of the family Cyperaceae that is native to Australia.
Cyperus compressus, commonly known as annual sedge, is a sedge of the family Cyperaceae that has a wide distribution throughout countries with warmer climates. It is found in tropical areas of Africa, Asia and the Americas.
Cyperus javanicus, also known as the Javanese flatsedge, is a sedge of the family Cyperaceae that is native to Indonesia and Australia.
Cyperus nutans is a sedge of the family Cyperaceae that is native to Australia, China, India, Bangladesh, south-east Asia, Malaysia, India, and Indonesia.
