Overview

Brief Summary

Cyperaceae is a plant family commonly known as the sedges, which is comprised of approximately 5500 species. Stems are unjointed and typically triangular in cross section, with solid pith throughout. Leaves are three-ranked or tristichous. Fruits are in the form of an achene or nut.

Species most commonly occur in wetlands, although some are found in upland locations, and in some cases are obtrusive to crops; Benzothiadiazoles are typically the herbicides of choice to control unwanted Cyperaceae.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

 

Supplier: C. Michael Hogan

Trusted

Article rating from 1 person

Average rating: 4.0 of 5

Comprehensive Description

Description

Annual or perennial herbs, usually most abundant in wet places. Culms usually triangular, usually solid. Leaves: alternate, usually 3-ranked, simple, grass-like or reduced to sheaths; sheath usually closedligule usually 0; lamina usually linear or setaceous. Inflorescence consisting of numerous spikelets, usually arranged in an anthela or panicle, often ± umbellate and subtended by leaf-like bracts. Flowers bisexual or unisexual, arising in the axils of a single bract (glume) without a bracteole, or in tribe Cariceae, the female flowers surrounded by a closed utricle. Glumes usually spirally arranged in 1-many-flowered spikelets. Perianth (only present in the tribes Scirpeae and Rhynchosporeae) consisting of 3-6 (rarely more) hairs, bristles or scales, in other tribes 0. Stamens (1-)2-3; anthers basifixed. Ovary superior, 1-locular with 1 erect ovule. Style simple; stigmas 2 or 3. Fruit a 1-seeded nut, biconvex or trigonous. Seeds free from the pericarp.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Ecology

Associations

Associations

Foodplant / open feeder
larva of Dolerus asper grazes on leaf of Cyperaceae

Foodplant / open feeder
larva of Dolerus megapterus grazes on leaf of Cyperaceae

Foodplant / open feeder
larva of Dolerus nitens grazes on leaf of Cyperaceae
Remarks: Other: uncertain

Foodplant / open feeder
larva of Dolerus possilensis grazes on leaf of Cyperaceae
Remarks: Other: uncertain

Plant / resting place / within
adult of Haplothrips aculeatus may be found in live flower of Cyperaceae
Remarks: season: 8-9

Foodplant / open feeder
nocturnal larva of Macrophya duodecimpunctata grazes on leaf of Cyperaceae

Foodplant / saprobe
fruitbody of Resinomycena saccharifera is saprobic on dead, decayed debris of Cyperaceae
Other: major host/prey

Foodplant / open feeder
larva of Selandria serva grazes on leaf of Cyperaceae

Foodplant / open feeder
larva of Selandria sixii grazes on leaf of Cyperaceae

Foodplant / open feeder
nocturnal larva of Tenthredopsis nassata grazes on leaf of Cyperaceae

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Molecular Biology and Genetics

Barcode

Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Cyperaceae
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                                             
Specimen Records:3,000
Specimens with Sequences:2,951
Specimens with Barcodes:2,330
Public Records:385
Species:837
Species With Barcodes:700
  
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Wikipedia

Cyperaceae

Cyperaceae is a family of monocot flowering plants known as sedges, which superficially resemble grasses or rushes. The family is large, with some 5,500 species described in about 109 genera (Govaerts et al., 2007). These species are widely distributed, with the centers of diversity for the group occurring in tropical Asia and tropical South America. While sedges may be found growing in all kinds of situations, many are associated with wetlands, or with poor soils.

Features distinguishing members of the sedge family from grasses or rushes are that members of the sedge family have triangular stems (with occasional exceptions), and their leaves are spirally arranged in three ranks (grasses have alternate leaves forming two ranks).[1][2][3]

Some well-known sedges include the water chestnut (Eleocharis dulcis) and the papyrus sedge (Cyperus papyrus), from which the Ancient Egyptian writing material was made. This family also includes cotton-grass (Eriophorum), spike-rush (Eleocharis), sawgrass (Cladium), nutsedge or nutgrass (Cyperus rotundus, a common lawn weed), the large genus of Carex, and white star sedge (Rhynchospora colorata).

Selected genera

Broad-leaved Cotton-grass (Eriophorum latifolium)

References

Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

 

Source: Wikipedia

Trusted

Article rating from 1 person

Average rating: 2.0 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!