Not all legumes fix nitrogen equally. In a living system there are a myriad of factors that have influence. Rather then jump to prescriptions and authority I think it is more valuable to step back and focus on attributes and goals.
Here is a list of some leguminous plants and their different attributes of value
Key-(B-biomass production, C-cold tolerance, N-nectar, D-drought tolerance, S-shares the light/summer shade, E-edible parts)
Leucaena leucocephala BSNDE
Albizia julibrissin SCD
Moringa olifera BSEDN
Parkinsonia aculeate DSCE
Catalpa bignonioides BCS(poles)
Acacia wrightii/Acacia farnessiana DSN
Eysenhardtia texana ND
Myrospernum sousanum ND
Sophora secundiflora DBN
Cercis canadensis CE(shade tolerance)
There are plenty of others, but rather then dive into a more exhaustive list I am gonna dive back into the garden.
More info on Leguminous plants(nitrogen fixers) for the Houston Food Forest
Organized Oral Sessions for 2014
Among professional scientists, there were eugenicists, medical doctors, climatologists, geographers, and taxonomists as well as those we would immediately recognize as plant and animal ecologists. As ...