Zones: 5 to 9
Size: 3' tall, 2' wide
Growth Rate: Moderate
'Sphaerocarpa' because the seed pods are spherical, unlike those of most legumes which are pod-shaped. Yellow flower spikes in April to May and green leaves.
Published in J. Acad. Nat. Sci. Philadelphia 7: 1: 97 in 1834.
Native of the US (Missouri, Oklahoma, Arkansas, Louisiana, Mississippi, Texas).