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Key to Conoclinium

Asteraceae

Conoclinium

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1 Leaf blades dentate or crenate, rarely with 1 or 2 deeper sinuses (but not cut more than halfway to the midvein).
  2 Leaf bases cordate to truncate; [coastal and s. TX].
    3 Leaf blades oblanceolate to ovate; leaf bases cordate, truncate, or obtuse; leaf margins crenate or entire; [inland habitats along streams and on lake shores]
  2 Leaf bases cuneate to truncate (rarely subcordate); [collectively widespread].
      4 Corollas 2.2-2.3 mm long; flowering late Jul-Nov; [widespread]
      4 Corollas 1.9-2.0 mm long; flowering Apr-Nov; [peninsular FL]