References
Copyright 1998-2017 
Yoshiaki Yoneda
- Austin, D. F., Kitajima, K., Yoneda, Y. and Qian, L. (2001)  A putaive American plant, Ipomoea nil (Convolvulaceae) in pre-Columbian Japanese art.  Economic Botany 55(4), 515-527.
 
- Fang, R.-ch. & G.W.Staples (1995) Convolvulaceae pp. 271-325, In Editorial Comittee (ed.).  Flora of China. Vol.16. Missouri Botanical Grden,  St.Louis,  MO.
 
- Hashimoto, G. and Nishimoto, Y. (1996) Illustrated cyclopedia of Brazilian medicinal plants.  Apokkusha
 
- House, H. D. (1908) The north American species of the genus Ipomoea. Ann. N.Y. Acad. Sci.18: 181-263.
 
- Imamura, S., Muramatsu, M., Kitajo, S.,  and Takimoto, A. 1966. Varietal difference in photoperiodic behavior of Pharbitis nil. Bot.Mag.Tokyo 79:714-721.
 
- Muramatsu, M. and S. Sakamoto  1956  Morning-Glories. 193-212. Land and crops of Nepal Himalaya Vol. (Ed.H.Kihara).  Fauna and Flora Res.Soc.Kyoto Univ., Kyoto.
 
- Ooststroom, S. J. V. (1940) The Convolvulaceae of Malaysia.  3.  The genus Ipomoea.  Blumea 3: 481-582
 
- Verdcourt,  B. (1963) Convolvulaceae Pp. 1-161 In: C. E. Hubbard and E. Milne-Redhead. (eds.) Flora of Tropical East Africa. Crown Agents for Oversea Governments and Administrations,  London.
 
- Yoneda, Y. (1972)  Peroxidase isozymes in four strains of morning glory. Japan.J.Genet. 45:183-188. 
- Yoneda, Y. (1977)  Morphology of mutants.  In: Plant genetics vol.4,  Morphogenesis and mutation. (ed.by Kihara and Yamaguchi)  p. 98-121. 
 
- Yoneda Y. and Takenaka Y. (1981) Natural-color illustrated monograph of Japanese morning glory.  Hokuryukan, Tokyo.
 
Edited by Yuuji Tsukii (Lab. Biology, Science Research Center, Hosei University)