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..2 Corolla 4-8 mm long, funnelform, the lobes 0.15-0.35× as long as the tube, usually reflexed; [mostly dry, calcareous, gyp, or saline habitats; c. and s. TX and westwards and southwards]
..2 Corolla 7-12 mm long, the lobes 1-1.5× as long as the tube, spreading; [saline coastal habitats; s. SC south to s. FL, west to w. TX and beyond]
....3 Corolla tube narrowed at base for 2.5-3 mm; corolla lobes 0.5-1× as long as the corolla tube; leaves gray-green, widest near the middle
....3 Corolla tube narrowed at base for ca. 1.5 mm; corolla lobes 1-1.5× as long as the corolla tube; leaves bright green, widest below the middle