Encyclopedia : Interspecific hybrids

Ipomoea hederacea x Ipomoea purpurea

Copyright 1998-2017 Yoshiaki Yoneda
It was very difficult to cross Ipomoea hederacea with Ipomoea purpurea. In 1980 the author collected a lot of strains of both species each and crossbred them on a large scale, but obtained only one seed after about 2000 crossings. From that single seed, the author was able to bring up an F1 plant, which set seeds. So F2 descendants were grown.
Slide No. 214-220
Red round flower
Light red round flower
Bluish purple round flower
Dark purple round flower
Dark purple round flower
Dark bluish purple round flower
Dark red round flower

  1. Yoneda, Y. and Takenaka, Y. (1981) Natural-color illustrated monograph of Japanese mornig glory. New edition. 74th Plate 201 Figure, Hokuryukan, Tokyo.
  2. Yoneda, Y. & Tamaki, S. (1984) Studies on interspecific hybrid in Pharbitis. VI. A hybrid of P. hederacea x P. purpurea and its descendants. Rep. Fac. Lib. Arts, Shizuoka Uni. (Sci.) 20: 9-17.

Edited by Yuuji Tsukii (Lab. Biology, Science Research Center, Hosei University)