Table 2. Differences in the set of legumes'species and subspecies between the Beringian Chukotka and Beringian Alaska areas.

Categories of differential species Beringian (East) Chukotka area (subprovince) Beringian (West) Alaska area (subprovince)
Endemics Oxytropis deflexa subsp. dezhnevii, O. beringensis, O. kateninii
Differential Oxytropis wrangelii Astragalus harringtonii, Lupinus nootkatensis, Lathyrus palustris subsp. palustris
Codifferential western Astragalus frigidus subsp. parviflorus, A. tolmaczevii, A. schelichovii, Oxytropis czukotica, O. vassilczenkoi subsp. vassilczenkoi, O. vassilczenkoi subsp. substepposa, O. semiglobosa, O. leucantha subsp. tschukotcensis, O. middendorffii subsp. anadyrensis Hedysarum hedysaroides subsp. tschuktschorum, Lathyrus japonicus subsp. pubescens
Codifferential eastern Astragalus sealii, Oxytropis bryophila, O. gorodkovii, O. borealis, Hedysarum mackenzii, H. americanum Lupinus arcticus, Astragalus alpinus subsp. alaskanus, A. eucosmus, A. polaris, A. nutzotinensis, Oxytropis deflexa subsp. foliolosa, O. roaldii, O. arctica subsp. arctica, O. hyperborea, O. sordida subsp. barnebyana, O. viscida, Hedysarum auriculatum
Negative-codifferential western Oxytropis sordida subsp. schamurinii, O. vasskovskii, O. middendorffii subsp. submiddendorffii, Astragalus pseudadsurgens, Hedysarum dasycarpum Astragalus frigidus subsp. parviflorus, A. tolmaczevii, A. schelichovii, Oxytropis deflexa subsp. dezhnevii, O. czukotica, O. vassilczenkoi subsp. vassilczenkoi, O. vassilczenkoi subsp. substepposa, O. semiglobosa, O. leucantha subsp. tschukotcensis, O. beringensis, O. wrangelii, O. middendorffii subsp. coerulescens, O. middendorffii subsp. anadyrensis, O. kateninii
Negative-codifferential eastern Astragalus harringtonii, Astragalus alpinus subsp. alaskanus, A. eucosmus, A. polaris, A. nutzotinensis, Oxytropis deflexa subsp. foliolosa, O. arctica subsp. arctica, O. hyperborea, O. sordida subsp. barnebyana, O. viscida, Lupinus arcticus, L. nootkatensis Oxytropis glaberrima, O. kokrinensis, O. scammaniana, O. koyukukensis, ? O. glutinosa