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1 Leaves averaging 2-4× as long as wide, 2.5-12 (-19) mm wide; leaf veins plane with the surface, inconspicuous, occupying < 20% of the leaf blade area.
..2 Leaf apices consistently rounded to truncate or emarginate; leaf blades (excluding the 3-10 mm long attenuated 'petiole') (10-) 15-20 (-31) mm long, (5-) 9-12 (-19) mm wide
..2 Leaf apices variable (on a plant), at least some acute; leaf blades (excluding the 3-10 mm long attenuated 'petiole') 5-11 (-21) mm long, 2.5-6 (-10) mm wide