| Dwarf flat sedge | |
|---|---|
 | |
| Cyperus pygmaeus | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Cyperus |
| Species: | C. pygmaeus |
| Binomial name | |
| Cyperus pygmaeus | |
Cyperus pygmaeus, also known as dwarf flat sedge, [1] is a sedge of the family Cyperaceae that is native to Australia. [2]
The spreading to prostrate annual herb sedge typically grows to a height of 5 centimetres (1.97 in). [2] It has reddish coloured roots and smooth, triquetrous culms that are 1 to 20 cm (0.39 to 7.87 in) in height and with a diameter of 1.5 mm (0.059 in). The leaves are most often no longer than the culms. [1] It blooms between July and August in warmer climates but later into summer around January in cooler climates producing green-brown flowers. [2]
The species was first described in 1773 by Christen Friis Rottbøll as part of the work Descriptionum et Iconum Rariores et pro maxima parte novas plantas. The only other synonyms are Juncellus pygmaeus and Cyperus michelianus subsp. pygmaeus. [3]
It is found in most Australian mainland states and territories including Western Australia, Northern Territory, South Australia, Queensland, New South Wales and Victoria. [1] In Western Australia it is found along stream and creeks and around clay pans in the Pilbara and Kimberley regions where it grows in loamy-silty soils. [2]
Cyperus polystachyos, also known as Pycreus polystachyos and commonly known as bunchy sedge, many-spiked sedge, or Texas sedge, is a herbaceous species in the family Cyperaceae, widespread in tropical and subtropical areas around the world, sometimes extending its range into temperate regions. In the United States, it has been reported from a region from Texas to Maine.
Cyperus alterniflorus, commonly known as umbrella flat-sedge, 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 concinnus is a sedge of the family Cyperaceae that is native to Australia, and found in New South Wales, Queensland, the Northern Territory, South Australia, Victoria and Western Australia.
Cyperus congestus, commonly known as dense flat-sedge or clustered flat-sedge, is a sedge of the family Cyperaceae that is native to southern Africa mostly in South Africa, Lesotho and Namibia.
Cyperus dactylotes is a sedge of the family Cyperaceae that is native to Australia.
Cyperus flaccidus is a sedge of the family Cyperaceae that is native to Australia.
Cyperus gilesii, commonly known as Giles' flat-sedge, is a sedge of the Cyperaceae that is native to Australia.
Cyperus gymnocaulos, commonly known as spiny flatsedge, is a sedge of the family Cyperaceae that is native to Australia.
Cyperus javanicus, also known as the Javanese flatsedge, is a sedge of the family Cyperaceae that is native to Indonesia and Australia.
Cyperus latzii is a sedge of the family Cyperaceae that is native to Australia, and found in the Northern Territory and Western Australia.
Cyperus nutans is a sedge of the family Cyperaceae that is native to Australia, and to China, India, Bangladesh, south-east Asia, Malaysia, India, and Indonesia.
Cyperus pulchellus is a sedge of the family Cyperaceae that is native to northern Australia.
Cyperus rigidellus is a sedge of the family Cyperaceae that is native to Australia.
Cyperus surinamensis, also known as the tropical flatsedge, is a sedge of the family Cyperaceae that is native to the Americas.
Cyperus vaginatus, commonly known as stiff-leaf sedge or stiff flat-sedge, is a sedge of the family Cyperaceae that is native to Australia.
Cyperus victoriensis, also known as channel nut grass is a sedge of the family Cyperaceae that is native to Australia.
Cyperus viscidulus is a sedge of the family Cyperaceae that is native to north western Australia.
Cyperus vorsteri is a sedge of the family Cyperaceae native to southern Africa.
Cyperus dubius, the soft sedge, is one of around 700 species of Cyperus in the sedge family, Cyperaceae. It is found throughout in tropical Africa, South India, and Indo-China to Malesia. It is growing in seasonally flooded areas and in pockets of soil in rocks. It is not confined to wetlands and is sometimes found as a weed in fields and near in sea on sandy beaches and also seen in open shady places.