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1 Phyllaries 2-8 mm wide; heads mostly nodding (declined at least slightly from the vertical) |
| 1 Phyllaries 1-2 mm wide; heads erect. |
| ..2 Involucres cylindrical or narrowly ellipsoid. |
| ....3 Phyllaries not scarious-margined; phyllaries tomentose |
| ....3 Phyllaries scarious-margined; phyllaries glabrate or glabrous |
| ..2 Involucres spherical or hemispherical. |
| ......4 Abaxial leaf blade surface with only curling, septate hairs; involucres 14–20 mm tall; disk corollas 13–20 mm long |
| ......4 Abaxial leaf blade surface with dimorphic hairs (longer, curling septate hairs on the veins and sparse to dense tomentum across the surface); involucres 12–17 mm tall; disk corollas 11–16 mm long |