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Key to Tiarella

Saxifragaceae

Tiarella

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1 Plants always with herbaceous, leafy stolons.
  2 Leaves usually with acute-acuminate lobes, terminal lobe prominently extended; flowering stem usually with 1-2 leaves or foliaceous bracts; sepals 1.5-2 mm long; [s. Blue Ridge of sw. NC, se. TN, nw. SC, ne. GA; disjunct slightly westwards in sc. TN and n. AL]
  2 Leaves usually with obtuse to rounded lobes, terminal lobe not prominently extended; flowering stem very rarely with a small bract; sepals 2.5-3.5 mm long; [widespread in the northern part of the region, south to Mountains of VA, nw. NC, ne. TN, KY, and s. OH]
1 Plants without herbaceous, leafy stolons.
    3 Leaves usually about as long as wide, usually with obtuse to rounded lobes, terminal lobe not extended; sepals 2.5-3 mm long; [mainly Piedmont and upper Coastal Plain, s. MD to e. GA]
    3 Leaves usually longer than wide, usually with acute-acuminate lobes, terminal lobe prominently extended; sepals 1.5-2 mm long.
      4 Flowering stem usually with leaves or foliaceous bracts; [n. GA, extreme sw. NC, extreme se. TN]
      4 Flowering stem without leaves or foliaceous bracts; [widespread from s. KY thorough TN to sw. GA, s. AL, and e. MS]