Czech Republic
| Firth Author | Year | Full citation | Keywords |
|---|---|---|---|
| Rybníček | 2000 | Rybníček O., B. Novotná, E. Rybníčkova, and & K. Rybníček, 2000. Ragweed in the Czech Republic. Aerobiologia 16:287–290 |
Ambrosia artemisiifolia L., Ambrosia trifida, Czech Republic, pollen concentration |