Dr. Tom D. Throckmorton
d 2000. Des Moines, Iowa, USA. Creator of the daffodil colour-coding system introduced in 1975
Fl. 95 mm wide.
Named for a favorite drink of Dr. Tom Throckmorton.
Johnnie Walker, 3 Y-Y, Dr. Tom D. Throckmorton, United States, 1977Photo #4765 Wells Knierim, USA