Select the total number of plants with albuminous seeds from the following.
Pea, Groundnut, Wheat, Maize, Barely, Castor, Sunflower

Mature seeds may be non-albuminous or ex-albuminous. Nonalbuminous seeds have no residual endosperm as it is completely consumed during embryo development (e.g., pea, groundnut and sunflower). Albuminous seeds retain a part of endosperm as it is not completely used up during embryo development (e.g., wheat, maize, barley, castor).