Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.
1 Shrub, 10-50 dm tall; leaflets 20-40 (-50) mm long; corollas lemon yellow; [coastal FL and TX].
..2 Leaflets 1.5-2× as long as wide; leaflet bases subcordate, slightly asymmetrical; leaflet lower surface densely tomentulose; corollas 23-25 mm long; [native of s. TX southwards, and introduced in s. FL]
..2 Leaflets (1.5-) 1.8-2.5× as long as wide; leaflet bases cuneate to rounded, usually strongly asymmetrical; leaflet lower surface sparsely pubescent at maturity; corollas (17-) 20-23 mm long; [of s. FL]