Five-stamen Tamarisk

Tamarix chinensis

"Tamarix chinensis" is a species of tamarisk known by the common names five-stamen tamarisk and Chinese tamarisk or saltcedar. It is native to China and Korea, and it is known in many other parts of the world as an introduced species and sometimes an invasive noxious weed.
Saltcedar or Tamarix chinensis Saltcedar or Tamarix chinesis
Tamarisks are extremely invasive in riparian communities, often nearly completely replacing native vegetation with impenetrable thickets. They are extremely competitive against native vegetation because they use much of the water. They also gather salt in their foliage, and where flooding does not flush out soil salts the leaf litter increases the salinity of soil surfaces. Dense stands of saltcedars support lesser biodiversity than the natural communities they displace.

Saltcedar displaces native vegetation, such as willows and cottonwoods, in riparian ecosystems, and is generally less valuable to wildlife than the native communities that it replaces. Dense stands of tamarisk have caused local flooding by impeding water flow at high water stages. It also decreases the available water to other plants by having deep roots that can tap into ground water more efficiently than native plants. Saltcedar trees need large amounts of water to grow, thus the presence of a dense stand of trees can actually lower the local water table.

A secondary effect of tamarisk invasion is the increased frequency of fire in impacted areas. Areas with this species are more prone to fire because tamarisk contributes to a heavy fuel load on the ground beneath them. The fire tolerance of saltcedar coupled with the fire intolerance of many native shrubs effectively leads to saltcedar dominance in a relatively short period of time.
5N4A9195 Fall,Geotagged,Tamarix chinensis,United States

Appearance

It easily inhabits moist habitat with saline soils. It may grow as a tree with a single trunk or as a shrub with several spreading erect branches reaching 6 metres or more in maximum height. It has been known to reach 12 metres. It has reddish, brown, or black bark. The small, multibranched twigs are covered in small lance-shaped, scale-like leaves which are no more than about 3 mm long. The inflorescence is a dense raceme of flowers a few cm long. Each fragrant flower has five petals which are usually pink but range from white to red.

This tamarisk can hybridize with "Tamarix parviflora". "T. ramosissima" may be treated in synonymy or as a separate species.

Distribution

It has become an aggressive invader of wildlands in the southwestern United States, where it was once planted as an ornamental plant. It reproduces vegetatively from its roots and also from its foliage if it happens to be covered by soil, as in sediment-rich flooding. It also reproduces by its seed, which are tiny and tufted with hairs, easily dispersing on the wind. Despite its reputation as a noxious weed, the tree can be useful for wood, in honey production, and as a nesting site for various birds.

In its native habitat in China the plant forms thickets that act as useful barriers on the margins of waterways, including saline ocean shores.

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderCaryophyllales
FamilyTamaricaceae
GenusTamarix
SpeciesT. chinensis