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Key to Phyla

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1 Leaves 2-7.5 cm long, lanceolate, widest at or below the middle, acute at the tip; leaf teeth (5-) 7-11 per leaf side
  2 Leaves widest below the midpoint; leaf teeth divergent, restricted to the margins past the widest point of the leaf
  2 Leaves widest at or near the midpoint; leaf teeth appressed, extending below the widest point of the leaf
1 Leaves 1-4 cm long, obovate, widest above the middle, obtuse to rounded at the tip; leaf teeth (0-) 1-5 (-7) per leaf side.
    3 Teeth (0-) 1-4 per leaf side; corolla tube 4-5 mm long; [LA and westward]
    3 Teeth (3-) 5 (-7) per leaf side; corolla tube 1.5-2.5 mm long; [collectively widespread in our area].
      4 Leaf blades elliptic or obovate, 0.5-2 (-4) cm long, 0.2-1.0 cm wide, the apex mostly acute; leaf surfaces and stems densely white-strigose or canescent; [rare waif in our area]
      4 Leaf blades obovate, spatulate, 2-4(-7.5) cm long, 0.5-1.5 (-3) cm wide, the apex mostly obtuse; leaf surfaces 1.5( 3) cm, apex mostly subobtuse, subglabrous or with scattered and subappressed hairs; [widespread and common in our area]