Modern taxanomists were particularly intoxicated when they decided to take on the Leguminosae family (peas). First note, that Leguminosae ends with an "sae" rather than an "eae". So they had to toss that name and give the legume family a different name Fabaceae. Some systems make Caesalpinioideae, Mimosoideae and Faboideae subfamilies of Fabaceae others make these classes of plants full families.
Anyway, the families will have different names depending on the year your plant identification book was published.
The basic goal, of course, of the elitists who are currently renaming all of the plants is to drive commoners away from the hobby of enjoying nature.
Anyway, this gallery will include pictures related to the legume family including peas, milk-vetch and the wide assortment of flowers found in nature. Like many families of flowers, the scientific names are essentially becoming useless for helping identify or otherwise classify plants.