▁domestic ated : ▁C . ▁ann u um , ▁C . ▁b ac cat um , ▁C . ▁ch in ense , ▁C . ▁fr utes c ens , ▁and ▁C . ▁pub esc ens . ▁ ▁Ph y log en etic ▁relationships ▁between ▁species ▁have ▁been ▁investig ated ▁using ▁bi oge ographical , ▁morph ological , ▁chem os ystem atic , ▁hy brid ization , ▁and ▁gen etic ▁data . ▁ ▁F ruits ▁of ▁C aps icum ▁can ▁vary ▁trem end ously ▁in ▁color , ▁shape , ▁and ▁size ▁both ▁between ▁and ▁within ▁species , ▁which ▁has ▁led ▁to ▁confusion ▁over ▁the ▁relationships ▁among ▁tax a . ▁ ▁Chem os ystem atic ▁studies ▁helped ▁distinguish ▁the ▁difference ▁between ▁vari eties ▁and ▁species . ▁For ▁example , ▁C . ▁b ac cat um ▁var . ▁b ac cat um ▁had ▁the ▁same ▁flav ono ids ▁as ▁C . ▁b ac cat um ▁var . ▁p end ul um , ▁which ▁led ▁research ers ▁to ▁believe ▁the ▁two ▁groups ▁belonged ▁to ▁the ▁same ▁species . ▁ ▁Many ▁vari eties ▁of ▁the ▁same ▁species ▁can ▁be ▁used ▁in ▁many ▁different ▁ways ; ▁for ▁example , ▁C . ▁ann u um ▁includes ▁the ▁" bell ▁pe pper " ▁variety , ▁which ▁is ▁sold ▁in ▁both ▁its ▁imm ature ▁green ▁state ▁and ▁its ▁red , ▁yellow , ▁or ▁orange ▁ri pe ▁state . ▁This ▁same ▁species ▁has ▁other ▁vari eties , ▁as ▁well , ▁such ▁as ▁the ▁Ana heim ▁ch iles ▁often ▁used ▁for ▁stuff ing ,