TY JOUR TI SOME ISSUES OF XEROPHILOUS FLORA ADAPTATION AND ORIGIN IN THE RUSSIAN CAUCASUS SEMI-DESERT REGIONS KW the Russian Caucasus KW xerophytes KW adaptation KW evolution KW life forms JO Bulletin of KSAU AU Magomadova, R.S. AU Taysumov, M.A. AU Abdurzakova, A.S. AU Astamirova, M.A. AU Hasuyeva, B.A. AU Satuyeva, L.L. AU Omarkhadzhiyeva, F.S. PY 2013 IS PB Krasnoyarsk State Agrarian University