Members of this family
A
- Argemone albiflora (White Prickly Poppy)
- Argemone mexicana (Prickly Poppy)
C
- Chelidonium majus (Greater Celandine)
- Corydalis ambigua
- Corydalis aurea (Scrambled Eggs)
- Corydalis cava
- Corydalis edulis
- Corydalis falconeri
- Corydalis govaniana
- Corydalis incisa
- Corydalis intermedia
- Corydalis juncea
C cont.
- Corydalis ochotensis
- Corydalis pallida
- Corydalis solida (Fumewort)
- Corydalis ternata (Three-Leaf Corydalis)
- Corydalis vaginans
- Corydalis yanhusuo (Yan Hu Suo)
D
- Dicentra canadensis (Squirrel Corn)
- Dicentra cucullaria (Dutchman's Breeches)
- Dicentra spectabilis (Bleeding Heart)
E
- Eschscholzia californica (Californian Poppy)
G
- Glaucium flavum (Horned Poppy)
M
- Macleaya cordata (Plume Poppy)
M cont.
- Meconopsis aculeata
- Meconopsis grandis (Blue Poppy)
- Meconopsis napaulensis (Himalayan Poppy)
P
- Papaver argemone (Prickly Poppy)
- Papaver dubium (Long-Head Poppy)
- Papaver nudicaule (Arctic Poppy)
- Papaver orientale (Oriental Poppy)
- Papaver rhoeas (Corn Poppy)
- Papaver somniferum (Opium Poppy)
- Platystemon californicus (Creamcups)
S
- Sanguinaria canadensis (Blood Root)
- Stylophorum lasiocarpum
{{#arraymap:|,|x|