Amorpha L.
Amorpha is a genus of 15 species, all native to North America. Three species are cultivated as ornamentals in Europe (Cullen 1995) but only one (Amorpha fruticosa) is more or less widespread in cultivation.
References
Cullen J. (1995) Amorpha. In: Cullen J. & al. (eds.), The European Garden Flora, vol. 4. Cambridge University Press, Cambridge: 500.
McMahon M. & Hufford L. (2004) Phylogeny of Amorpheae (Fabaceae: Papilionoideae). Am. J. Bot. 91(8): 1219-1230.
Wilbur R.L. (1975) A revision of the north American genus Amorpha (Leguminosae-Psoraleae). Rhodora 77: 337-409.
Taxonomic name: