Dr. Tom D. Throckmorton
d 2000. Des Moines, Iowa, USA. Creator of the daffodil colour-coding system introduced in 1975
Fl. 96 mm wide; corona with gold tints.
White Tie, 3 W-W, Dr. Tom D. Throckmorton, United States, 1978Photo #45653 Michael Darlow, EnglandWhite Tie, 3 W-W, Dr. Tom D. Throckmorton, United States, 1978Photo #5029 Wells Knierim, USA