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STATE OF COLORADO DIVWON OF MINERALS AND GIOIOGY d~ 1 8 l]U Shanun X, Room 2ls ~ 6`~ COLORADO DIVIaION O/ ~ s f0 ~' MINE RALS ~ s~3wi 4.dY) ' - l & rnx lwn e~~alos / ~G r O G E O L O G Y ~ _` •ICIAl1A/IOM•IIIMIN• IA11TT•/CIIMCI ~~ G01~1/Y/ IYWa (•A01' FIaK/d.~ O4~b/ aoldd W. C~r/r OWlllon pnoN NanNY xaNMTa Tn~a Weed Management Guideline for Tamarisk and Russian Olive, Minerals Program t:eb B, 2006 Introduction Salt Cedar (Tamarix ssp) is a deciduous shrub or small tra growing 12-15 feet in height and forming dense thickets. Salt Cedar establishes in areas where seedlings can be exposed to extendal periods of saturated soil for establishment. Salt Cedar can grow on highly saline and alkaline soils. it spreads vegetatively, by adventitious roots or submerged sterns, and sexually through flowers that can each produce thousands of tiny seals. Seedlings require extended periods of soil saturation for establishment. Salt Cedar establishes in disturbed and undisturbed streams, waterways, bottomlanda, banks, anti drainage washes of natural or artificial water bodies, moist rangelands anti pastures. Russian olive is a member of the Oleaster family. Russian olive is an introduced, deciduous, shrub or small trey usually 12 to 45 feet tall. It can grow up to 6 feel per year. At three years of age, plants begin to flower and fruit. It forms a dense, rounded crown. Near the ground its branches spread from 10 to 20 feet. It has a deep taproot and well-clevcloped lateral root system. f3rcausc Russian olive is capable of fixing nitrogen in its roots, it can grow on bare, mineral substrates and dominate riparian vegetation where overstory cottonwoods have died. Russian olive establishes in disturbed areas, successional fields, pastures, roadsides, and has escaped to invade prairies, oprn woodlands, and forest edges. onk, d ofllra d MMled tJlld Raclarrl,Ilim Altlw and INC1M Mlnn cotooeo ~ slllyw