| Kingdom: | Plantae |
| Phylum: | Spermatophyta |
| Class: | Angiospermae |
| Subclass: | Dicotyledoneae |
| Superorder: | Magnoliidae |
| Order: | Papaverales |
- Family
- Genus
- species – Common Name
- Corydalis
- cava – Coydalis, Turkey Corn
- Decentra
- cucullaria – Bleeding Heart, Dutchman’s Breeches, Corydalis
- Fumaria
- officinalis – Fumitory, Earth Smoke, Fumaria
Papaveraceae
- Chelidonium
- majus – Celandine, Tetterwort, Wart-weed, Felon-wort
- Eschscholtzia
- californica – California Poppy
- Papaver
- somniferum – Opium Poppy, Garden Poppy
- Sanguinaria
- canadensis – Bloodroot, Red Puccoon, Sweet Slumber, Coonroot
Fumariaceae
