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r <br />M~ ~ ~ <br />!~ ~ :1i <br />~A <br />:i" , 1. ,~' 7~ <br />.~.I~~l~~ .' <br />~ ~':.:~ <br />.. <br />figure 6. Lr74rra! rtxrfs <br />prtdrur fru~is ;clnih derBnY <br />info rr+su shook <br />Roots <br />Kurt ws4•ms am very .imilar to thn•e of leafy spurge. Root growth is rapid, <br />roarhin;; 1? to 91) Iecl by the second or third gnxving .raxtn, 'Ihe root cyslem <br />ton~r,ts ut a cerhtal tapn,at x4tich develop, several IaR•rll root.. Lateral mots <br />eventually turn down to brtunu• vertical root. which uth•n n•ach };mater deptfts <br />th•ut the parent rout.. In some case,, u•hitetup tan plate their rcxtb diretth• utto <br />the x•atcr table. Birth the vcrtic.rl .rod lateral rout; producr advcntitiuus buds, <br />which develop mto rlun+mes mtd chooL.. i1tr de'<•p nxtt ststem and iL, abilih• to <br />reproduce vegetatively male these x•ecds very diffindl 0.+ a,ntn,l. <br />Shook <br />All thra• species arc capable ~+t producing mares shout.. tihoot development <br />n•nd> h~ otatr at or just above the point where lateral routs bend dox•ntvard and <br />beiunx• vertical. 1 luwevre buds can form on any part ul the owl svaem. Under <br />experimental condition., without ii+mp+rlitiun, a single pl.utt pnxiuted aver <br />d~0 .huut~ in a ~in+;lr year. Willi : umpctitian, they rarely producr man• than 5{I <br />~hrn+l~ pet "lunn~ v,irt. <br />Seed Production and Longevity <br />:\ .:n)'Ic i+Lud ul Iho>e y,c,'io•, •.ut produce front 1,?00 W 9,ti00 seeds each year. <br />I Ie.nt-pud,tcd +riulcb,p i. lhr m,,.t pn+litic and tan pnxiucc as many as R5U <br />tied. per IL+xernt}, stun. <br />Buried ;+ytd, 6vr for ghoul three years in soil. In one study, germination of <br />I-year-old. '_-vear•old and ?-ycar•ald +vhitrtop zeds teem S.l. 31 and 0 Fx•rcent. <br />respectively. f Icart-podded whnelup is capable ut );rmttnatntg in .alt stn•.vd <br />envirrnuncnk <br />