Eleocharis acicularis

Taxobox
name = "Eleocharis acicularis"

---

image_width = 260px
regnum = Plantae
divisio = Magnoliophyta
classis = Liliopsida
ordo = Poales
familia = Cyperaceae
genus = "Eleocharis"
species = "E. acicularis"
binomial = "Eleocharis acicularis"
binomial_authority = (L.) Roem. & Schult. (1817)
synonyms = "Heleocharis acicularis"
"Scirpus acicularis"
"Scirpus chaeta"
"Scirpus exigua"
"Scirpus radicans"
"Eleocharis radicans"
"Eleogiton exigua"
"Limnochloa acicularis"

"Eleocharis acicularis" is a species of spikesedge known by the common names needle spikerush and dwarf hairgrass. It has a circumboreal distribution and it can also be found throughout the rest of the Americas. It lives in Australia, where it was probably an introduced species. This is an annual or perennial spikesedge with long, grasslike stems to about 15 centimeters in height, shorter in bog conditions, from a creeping rhizome. In shallow water it will form short spikes of tiny flowers amongst flat overlapping bracts. The tiny flowers are less than five millimeters in diameter and are borne at the tip of each stem in single, sharply pointed, lanceoloid spikelets up to about six millimeters long. This is a plant of marshes, vernal pools, and bogs, and it is also used as an aquarium plant. It thrives with plenty of light and a high concentration of carbon dioxide.

References

*Roe, Colin D. (1967), "A Manual of Aquarium Plants", Shirley Aquatics, Solihull

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?7928,8103,8104 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=ELAC USDA Plants - illustrated]
* [http://www.wetwebmedia.com/plantedtkssubwebindex/eleocharis.htm WetWebMedia: Hair Grass]
* [http://www.npwrc.usgs.gov/resource/plants/vascplnt/species/eaci.htm USGS Species Profile]
* [http://www.ecy.wa.gov/Programs/wq/plants/plantid2/descriptions/ele.html Washington State Water Quality Program]