United States
0.15 - 0.18$
price on 16.11.2022
| Country: | United States |
| Type: | Postage stamps |
| Series: | Botanical Congress Issue |
| Nominal: | 6 ¢ |
| Year: | 1969 |
| Perforation: | line 11 |
| Mintage: | 40,000,000 |
Botanical Congress Issue
 Douglas Fir (Pseudotsuga menziesii) 0.13$ |  Showy Lady's-slipper (Cypripedium reginae) 0.15$ |  Ocotillo (Fouquieria splendens) 0.13$ |  Frankinia alatamaha 0.13$ |