LOWER PLATTE 
WEED MANAGEMENT AREA


 




 

Saltcedar
Tamaricaceae - Tamarix Family
Tamarix ramosissima Ledeb.

Saltcedar is Nebraska's newest noxious weed, designated a noxious weed
on January 1, 2005. It grows along rivers and streams, in salt marshes, flood plains,
and lakeshores. In Nebraska, it is present on the Platte, Missouri, and Republican
Rivers. Saltcedar is a noxious weed in several states.

Saltcedar is non-native, has no natural enemies, and can quickly form a monoculture
along lakes and waterways. Native riparian species are quickly displaced by
saltcedar, which in turn causes displacement of native birds and animals that
generally feed on seeds and leaves of native and beneficial plants. Once established
the plants become so thick that cattle will not graze the area.

Saltcedar has many characteristics that make it a very aggressive plant in wetland
areas. The seeds are extremely tiny and are similar in size and color to pepper. A
tuft of hairs at the tip of the seed aids in dispersal by wind and water. A mature tree
can produce up to 500,000 seeds per year. The seeds have a very high intial
viability and can germinate as soon as 24 hours after dispersal. Seed is short-lived,
however, usually remaining viable for less than a few months.
Once a seed germinates, it can grow rapidly to a small flowering shrub in one to two years.

The plant quickly establishes along, woody taproot. The taproot of
a mature saltcedar tree can descend as much as 50 feet into the soil profile. The root
system is capable of producing many new shoots if the top growth is removed by
mechanical methods or fire.

A large saltcedar tree can absorb 200 gallons of water per day, giving heavy
infestations the ability to dry up creeks and small lakes. Each year, more tall dense
stands of saltcedar have the potential to use over 9 acre feet of water for every acre
of infestation.

                                                             INFESTATION PICTURES


Plant Facts

Common Name : Saltcedar (tamarix, tamarisk)

Growth Form : Shrub or small tree

Life Span : Perennial

Origin : Eurasia

Flowering Dates : April - September

Reproduction : Seeds, root sprouts, buried stems

Height : 1 - 6 m ( 3.3 - 20 ft)

Inflorescence : Racene (1.5-7.5 cm long, 2.5 - 4 mm wide), numerous in panicles, flowers many; bracts
triangular to narrowly trullate (longer than the pedicels), tips pointed, margins denticulate

Flower : White to deep pink corolla, petals 5; petals obovate to broadly elliptic (1-1.8 mm long); sepals
5, green, toothed

Fruit : Capsules, lance-ovoid (3-4 mm long), narrowed in to a beak, tuft of soft bristles at the tip,
purplish-red to yellowish-green; seeds many

Seed : Minute, tuft of hairs at the tip

Leaves : Alternate, imbricate; blades lanceolate to ovate-lanceolate (1-4 mm long), tips pointed, margins
membranaceous, bluish-green to grayish-green

Twigs : Upright or spreading, forming thickets; bark smooth and glabrous becoming ridged and furrowed
with age

Underground : Taproot, deep, extensive

Where Found : Western Great Plains in salt marshes, flood plains,lake shores, and along rivers and streams.
Saltcedar tolerates alkaline and saline conditions.

Uses and Values: Saltcedar has little forage value for livestock or wildlife. It provides nectar and pollen
for bees and nesting cover for morning doves. It is sometimes planted as an ornamental and for
erosion control

Poisonings : None

Historical : Saltcedar was introduced into the United States in the 1820's

Other : It uses a large amount of water, and dense stands may cause springs and small streams to dry
up. Seeds of saltcedar are spread by water and wind