What class of veg is beans in?

The following list is probably more inclusive than some people would accept*:

Legumes, Leafy, Stems, Fruits (like squash), Roots and Tubers, Bulbs, Spices and Herbs, Cereals, Flowers and Buds (like broccoli), Fungus, Seaweed.

*My criterion for inclusion is: You don't need to chase it.