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STATE OF COLORADO <br />t)Iysm OF MINERALS AND GEOLOGY <br />Dqar" t of NeWral Re+iomm <br />A <br />1313 Simmers St, Room 213 C O L D RA D O <br />Dow, Colorado 80203 D t v l f i o rt of <br />Mmm (303) 8W3567 MIN RA L S <br />FAX: (303) 832-8106 <br />GEO OGY <br /> RIC/AMAT 10#4 -NI lolled <br /> 1AVITT•11CIINCr <br />is owam <br />CiOMlllar <br />RuwR GaM <br />Executive Dkedw <br />ItONdd W. aaerly <br />Division Dbecw <br />Natural ROOM= Tnrnee <br />Weed Management Guideline for Tamarisk and Russian Olive. Minerals <br />Program <br />Feb 8, 2006 <br />Introduction <br />Salt Cedar (Tamarix ssp) is a deciduous shrub or small tree growing 12-15 feet in height and forming <br />dense thickets. Salt Cedar establishes in areas where seedlings can be exposed to extended periods of <br />saturated soil for establishment. Salt Cedar can grow on highly saline and alkaline soils. It spreads <br />vegetatively, by adventitious mots or submerged stems, and sexually through flowers that can each <br />produce thousands of tiny seeds. Seedlings require extended periods of soil saturation for establishment. <br />Salt Cedar establishes in disturbed and undisturbed streams, waterways, bottomlands, banks, and drainage <br />washes of natural or artificial water bodies, moist rangelands and pastures. <br />Russian olive is a member of the Oleaster family. Russian olive is an introduced, deciduous, shrub or <br />small tree usually 12 to 45 feet tall. It can grow up to 6 feet per year. At three years of age, plants begin <br />to flower and fruit. It forms a dense, rounded crown. Near the ground its branches spread from 10 to 20 <br />feet. It has a deep taproot and well-developed lateral toot system. Because Russian olive is capable of <br />fixing nitrogen in its roots, it can grow on bare, mineral substrates and dominate riparian vegetation where <br />overstory cottonwoods have died. Russian olive establishes in disturbed areas, successional fields, <br />pastures, roadsides, and has escaped to invade prairies, open woodlands, and forest edges. <br />Ofte of 011ke of Colorado - <br />MkNld Land Red urnadw Active "InectM Mlrne G "1111 i Nnv"