The following are considered Kitniyot:
Beans
Buckwheat
Caraway
Cardamom
Corn
Fennel
Fenugreek
Lentils
Millet
Mustard
Peanuts
Peas
Poppy Seeds
Rapeseed
Rice
Sesame Seeds
Soybeans
Sunflower Seeds

The following are not considered Kitniyot:
Anise
Carob
Coriander
Cottonseed
Cumin
Guar Gum
Linseed
Locust Bean Gum

The following may be Kitniyot and are therefore not used:
Quinoa
Amaranth