East and Southeast Asian strains
___ Japanese Tokyo Kokei Standard, TKS
___ Chinese Peking Tendan
___ Nepal or N-1
___ Philippine Y021
West Asia
___ Iran, Y029
Oceania
___ Australia Y028
Central America
___ Mexico, Y030
South America
___ Colombia Y023
___ Colombia Y024
___ Colombia Y025
___ Colombia Y026
___ Brazil SU010
Africa
___ Africa W001
Comparison of various characters in 13 strains
Afternoon flower-opening Morning glory, Ipomoea nil
Comparison of the flower-opening time
References
Edited by Yuuji Tsukii (Lab. Biology, Science Research Center, Hosei University)