|
• Appendix B
<br /> AWE ED REPORT from the book Weed Control in Natural Areas in the Western United states
<br /> This WEED REPORT does not constitute a formal recommendation.When using herbicides always read the label,and when in
<br /> doubt consult your farm advisor or county agent.
<br /> This WEED REPORT is an excerpt from the book Weed Control in Noturol Areas in the Western United States and is available
<br /> wholesale through the UC Weed Research&Information Center(wric.ucdavis.edu)or retail through the Western Society of
<br /> Weed Science(wsweedscience.org)or the California Invasive Species Council(cal-ipc.org).
<br /> Tamarix aphylla (L.) Karst.; athel tamarisk T.ramosissima
<br /> Tamarix chinensis Lour.;Chinese tamarisk s
<br /> Tamarix gallica L.;French tamarisk 4
<br /> Tamarix parviflora DC.; smallflower tamarisk ,
<br /> Tamarix ramosissima Ledeb.;saltcedar, and
<br /> hybrids of T. ramosissima, T.gallica, and T. l
<br /> tx..
<br /> chinensis
<br /> Saltcedar and tamarisk
<br /> Family:Tamaricaceae
<br /> Range:All western and southwestern states,some species widely planted.
<br /> Habitat:River,lake and pond margins,washes,roadsides,ditches,flats,sand
<br /> dunes,desert springs.Grows best in alkaline soil,but tolerates salinity and
<br /> acidity.Mature plants survive desert heat,below-freezing temperatures,periodic
<br /> flooding,drought,burning.
<br /> Origin:Native to eastern Asia,northern Africa,the Middle East,India,and
<br /> southern Europe.Tamarix species were introduced as landscape ornamentals and
<br /> have escaped cultivation in many states,especially in the southwest.Athel
<br /> tamarisk is still widely sold as an ornamental,but is not as invasive as the other s.
<br /> species.
<br /> Impacts:All species are facultative phreatophytes that can use both surface and
<br /> groundwater.The presence of numerous trees along riparian corridors or around
<br /> desert springs can seriously reduce underground water tables and surface water
<br /> availability,drying up wetlands,and reducing flows.Roots extract salts from
<br /> deep soil layers and excrete it from the leaves.Salt is deposited on the soil surface with the leaf litter.The
<br /> increased salinity of the upper soil profile inhibits the growth,survival,and recruitment of desirable native
<br /> vegetation.Although some animals will seek cover or nest in Tamarix thickets,most wildlife does not consume
<br /> Tamarix foliage,fruits,or seeds.Tamarix species can increase flooding in riparian areas by narrowing channel
<br /> width.In addition,the plants are flammable and can introduce fire into wetland and riparian communities that
<br /> are not adapted to periodic burning.
<br /> Western states listed as Noxious Weed: T.parviflora,California,Colorado,Montana,Nevada,New Mexico,
<br /> North Dakota,South Dakota,Wyoming.T. ramosissima and hybrids,California,Colorado,Montana,Nevada,
<br /> New Mexico,North Dakota,Oregon,South Dakota,Utah,Washington,Wyoming. T. chinensis,California,
<br /> Colorado,Montana,New Mexico,North Dakota,South Dakota,Wyoming.T.gallica,California,Montana,New
<br /> Mexico,South Dakota,Wyoming
<br /> California Invasive Plant Council(Cal-IPQ Inventory:T.parviflora and T.ramosissima,High Invasiveness;T.
<br /> aphylla,Limited Invasiveness
<br /> Tamarix species are small trees or shrubs with tiny scale-or awl-like leaves.Smallflower tamarisk is the
<br /> shortest of the species and grows to about 15 ft tall.Saltcedar,Chinese tamarisk,and French tamarisk grow to
<br /> about 20 ft tall.All four of these species are deciduous and have awl-like twig leaves that strongly overlap each
<br /> other and have acute tips.The foliage of saltcedar,Chinese tamarisk,and French tamarisk is usually more
<br /> bluish-green than smallflower tamarisk.Athel tamarisk grows to 40 ft tall and is evergreen or semi-evergreen.
<br /> Its twig leaves are scale-like,not or barely overlapping,and appear like small segments along a stem. Tamarix
<br /> species typically develop an efficient,deep root system(>15 ft deep)and have a high evapotranspiration rates
<br /> I of 4 2013
<br />
|