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1 Leaves strongly basally disposed, much reduced on the mid and upper stem and the basal and lower stem leaves sometimes withering by anthesis; leaf blades linear or linear-lanceolate (lower) to linear-subulate (upper stem), > 10× as long as wide; leaf margins strongly scabrous; [West Gulf Coastal Plain] | |
1 Leaves cauline; leaf blades ovate to lanceolate, mostly < 9× as long as wide; leaf margins not strongly scabrous; [widespread]. | |
2 Larger leaves > 5× as long as wide, rarely > 2.5 cm wide, the bases slightly clasping; [dry glades and barrens] | |