Eleocharis parvula
Encyclopedia
Eleocharis parvula is a species of spikesedge
known by the common names dwarf spikerush, small spikerush and hairgrass in aquaria. It has a circumboreal distribution
, growing throughout Eurasia and North America, into Central America. It is a plant of brackish and saltwater
habitat, such as marsh
es and mudflats. It is a perennial herb growing tufts of spongy, compressible stems not more than 10 centimeters tall. The plant grows from a tuber
which is J-shaped or horseshoe
-shaped, a characteristic that helps in the identification of the species. The inflorescence
is an oval-shaped spikelet just 2 or 3 millimeters long, made up of several tiny flowers.
Eleocharis
Eleocharis is a genus of 250 or more species of flowering plants in the sedge family, Cyperaceae. They are known commonly as spikerushes, although spikesedges is a more technically appropriate name and most scientists who study them in earnest refer to them as such...
known by the common names dwarf spikerush, small spikerush and hairgrass in aquaria. It has a circumboreal distribution
Circumboreal Region
The Circumboreal Region is a floristic region within the Holarctic Kingdom in Eurasia and North America, as delineated by such geobotanists as Josias Braun-Blanquet and Armen Takhtajan....
, growing throughout Eurasia and North America, into Central America. It is a plant of brackish and saltwater
Seawater
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% . This means that every kilogram of seawater has approximately of dissolved salts . The average density of seawater at the ocean surface is 1.025 g/ml...
habitat, such as marsh
Marsh
In geography, a marsh, or morass, is a type of wetland that is subject to frequent or continuous flood. Typically the water is shallow and features grasses, rushes, reeds, typhas, sedges, other herbaceous plants, and moss....
es and mudflats. It is a perennial herb growing tufts of spongy, compressible stems not more than 10 centimeters tall. The plant grows from a tuber
Tuber
Tubers are various types of modified plant structures that are enlarged to store nutrients. They are used by plants to survive the winter or dry months and provide energy and nutrients for regrowth during the next growing season and they are a means of asexual reproduction...
which is J-shaped or horseshoe
Horseshoe
A horseshoe, is a fabricated product, normally made of metal, although sometimes made partially or wholly of modern synthetic materials, designed to protect a horse's hoof from wear and tear. Shoes are attached on the palmar surface of the hooves, usually nailed through the insensitive hoof wall...
-shaped, a characteristic that helps in the identification of the species. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
is an oval-shaped spikelet just 2 or 3 millimeters long, made up of several tiny flowers.