Dr. Tom D. Throckmorton
d 2000. Des Moines, Iowa, USA. Creator of the daffodil colour-coding system introduced in 1975
Fl. 100 mm wide; corona bright lemon, with deep green at base and red at rim.
State Fair, 3 Y-GYR, Dr. Tom D. Throckmorton, United States, 1977Photo #436 ADS Photo, USA