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Key to Abutilon

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1 Carpels 10 or fewer, short-pubescent; [of peninsular FL]
1 Carpels 11 or more, hirsute; [collectively widespread in our area, including FL]
  2 Stems viscid, with stalked glands; petals orange-yellow with a dark red base
  2 Stems eglandular; petals yellow to pinkish (or if orange-yellow, then lacking a dark red base).
    3 Petioles and stems not pilose, the longest hairs < 1 mm long
    3 Petioles and stems pilose, hairs 2-3.5 mm long
      4 Lower leaf surface light green, petals yellow or yellow-orange
      4 Lower leaf surface whitish tomentose; petals pink to pinkish-yellow