Natural Communities of North Georgia
  • Home
  • Piedmont
    • Piedmont Overview
    • Mesic (Moist) Forests
    • Oak-Pine-Hickory Forests
    • Bottomland/Floodplain Forest
    • Pine-Oak Woodlands
    • Montane Longleaf
    • Prairies and Savannas (Upland)
    • Wet Meadows and Marshes
    • Granite Outcrops
    • Glades, Barrens, and Woodlands
    • Ultramafic Barrens and Woodlands
    • Cliffs and Bluffs
    • Flatwoods (Upland Depression Swamps)
  • Blue Ridge
    • Blue Ridge Overview
    • Northern Hardwoods
    • Montane Oak Forests
    • Fertile Cove Forests
    • Acidic Cove Forests
    • Oak Forests
    • Pine-Oak Woodlands
    • High Elevation Outcrops
    • Mafic Dome Rock Outcrops
    • Rock Outcrops, Cliffs and Bluffs
    • Ultramafic Barrens and Woodlands
    • Mountain Bogs
    • Seepage Wetlands
    • Spray Cliffs
    • Montane Bottomlands and Flooplains
  • Cumberland Ridge & Valley
    • Cumberland Ridge & Valley Overview
    • Mesic Forests
    • Dry Calcareous Forests
    • Acidic Oak-Pine Forests
    • Pine-Oak Woodlands
    • Montane Longleaf
    • Calcareous (Cedar) Glades
    • Calcareous Cliffs
    • Calcareous Prairies and Barrens
    • Acidic Glades and Barrens
    • Acidic Cliffs and Outcrops
    • Flatwoods
    • Acidic Seepage Wetlands
    • Bottomlands and Flooplains
  • Impact of Rock Type on Plant Composition
  • Plant Adaptations to Deciduous Forests

Cumberland Plateau/Ridge & Valley Mesic Forests

​Mesic Forests grow  in moist cool, protected sites where soils are deep and rich, such as valley floors, ravines, north-facing coves, and in some some large sinkholes.  They most often occur on limestone-based soils in this ecoregion, but are sometimes found in cool, more acidic sites.  These stunning communities contain a large diversity of  mesophytic trees, including yellow wood, basswood, southern sugar maple and yellow buckeye, as well as lush carpets of spring wildflowers. 

​Indicator species:  southern and northern sugar maples, Ohio and yellow buckeyes, tulip poplar, and basswood
What's special: these forests can be lush and beautiful, especially in the spring on calcium-rich soils, when a rich diversity of spring wildflowers that are uncommon elsewhere in the state - some only occur in these forests - bloom here, including celandine poppy, twinleaf, columbine, Virginia bluebells, bent trillium, and fern-leaf phacelia.  The deep, moist soils and leaf litter support amphibians and snails. 
Conservation:  these forests can grow into very old forests, given time and with only small-gap disturbance regimes.  Those over high pH substrates are particularly special.  They should be preserved and kept free from fire, logging, or other human disturbance.. 
Related communities:  Calcareous cliffs can be embedded within this community. Grades to Bottomlands and Floodplains.


Plants

Click on a plant name to see images.  Plants listed n order by scientific name.  
Soil/bedrock nutrient traits, such as "rich", "calcareous" and "mafic" is provided in The Flora of the Southern and Mid-Atlantic States, here.  

Trees
​Southern sugar maple Acer floridanum (especially calcareous and mafic)
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Northern sugar maple Acer saccharum (especially calcareous and mafic)
Yellow buckeye Aesculus flava
Ohio buckeye Aesculus glabra (over limestone)
Musclewood/American hornbeam Carpinus caroliniana
Bitternut hickory Carya cordiformis (especially in rich soils)

Yellowwood Cladastris kentuckea (esp. calcareous or mafic)
American beech Fagus grandifolia var. carolina 
White ash Fraxinus americana (rich soils, and in calcareous or mafic soils on dry sites)
Common silverbell Halesia tetraptera
Tulip-tree Liriodendron tulipifera
Cucumber magnolia  Magnolia acuminata (especially  mafic or calcareous)
Fraser magnolia  Magnolia fraseri
Umbrella magnolia  Magnolia tripetala
Ironwood/ American hop-hornbeam Ostrya virginiana (especially over basic bedrock) 
Northern red oak Quercus rubra
White basswood  Tilia americana var. heterophylla (rich soils)

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 Shrubs
Painted buckeye Aesculus sylvatica (nutrient-rich forests)
Common pawpaw  Asimina triloba (nutrient-rich forests)
Strawberry bush Euonymus americana

Smooth hydrangea  Hydrangea arborescens
Northern spicebush  Lindera benzoin (slopes with circumneutral soils)


Ground Cover
Wildflowers
Dolls'-eyes  Actaea pachypoda (rich forests)
Black cohosh  Actaea racemosa (rich to very fertile forests)
Sharp lobed hepatica Anemone acutiloba (esp. mafic or calcareous)
Round lobed hepatica Anemone americana
Canada columbine Aquilegia canadensis (esp. calcareous and mafic rocks)
Jack-in-the-pulpit Arisaema triphyllum
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Wild ginger Asarum canadense (rich, circumneutral soils)
Wild hyacinth Camassia scilloides (limestone)
Cutleaf toothwort Cardamine concatenata (rich forests)
Broadleaf toothwort Cardamine diphylla (rich forests)
Blue cohosh  Caulophyllum thalictroides (rich forests)
Devil's-bit Chamaelirium luteum
Northern horsebalm Collinsonia canadensis (rich forests, especially over mafic or calcareous bedrock)
Yellow lady's-slipper Cypripedium parviflorum (rich)
Harbinger-of-spring Erigenia bulbosa
Dimpled trout lily  Erythronium umbilicatum
Wild geranium Geranium maculatum
Summer bluet Houstonia purpurea
Goldenseal Hydrastis canadensis (very nutrient rich soils over mafic or calcareous rock)
Crested iris - Iris cristata (rich forests)
Twinleaf Jeffersonia diphylla (calcareous or mafic) 
Virginia bluebells Mertensia virginica (fertile)
Hairy sweet cicely Osmorhiza claytonii (fertile forests)
Smooth sweet cicely Osmorhiza longistylis (fertile forests)
Ginseng Panax quinquefolius (nutrient rich forests, tending to avoid richest coves)
Fernleaf phacelia Phacelia bipinnatifida
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Blue phlox Phlox divaricata (circumneutral soils)
May-apple Podophyllum peltatum (rich forests)
Yellow mandarin  Prosartes lanuginosa
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​Carolina petunia Ruellia caroliniensis
Bloodroot Sanguinaria canadensis (nutrient-rich forests)
Axillary goldenrod Solidago caesia
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Star chickweed Stellaria pubera
Celandine poppy Stylophorum diphyllum
Rue anemone Thalictrum thalictroides
Foamflower Tiarella cordifolia
Catesby's trillium Trillium catesbaei
Decumbent trillium Trillium decumbens
Bent white trillium Trillium flexipes (mafic or calcareous)
Lanceleaf trillium Trillium lancifolium (calcareous)
Yellow trillium Trillium luteum (mafic or calcareous)
Sweet Betsy/Toadshade trillium Trillium cuneatum (rich forests, usually over mafic or calcareous rocks)
Nodding trillium - Trillium rugelii (rich forests, usually over mafic or calcareous rocks)
Perfoliate bellwort Uvularia perfoliata
Halberd-leaf violet Viola hastata (often acidic coves)
Tall white violet Viola canadensis

Ferns
Northern maidenhair fern  Adiantum pedatum (especially  mafic or calcareous)
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Rattlesnake fern Botrypus virginianus (especially on nutrient-rich slopes)
Silvery glade fern Homalosorus pycnocarpon (very nutrient-rich forests over mafic or calcareous rock)
Broad beech fern Phegopteris hexagonoptera
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Christmas fern  Polystichum acrosticoides
Southern lady fern Athyrium asplenioides


​Representative Trees in order by scientific name
Representative shrubs in order by scientific name
Common pawpaw (Asimina triloba) by R&T Ware
Common pawpaw (Asimina triloba) in fruit. R&T Ware
Sweet shrub by J. Pakchar
Strawberry-bush by J. Pakchar
Spicebush (in fruit) by R&T Ware
Painted buckeye (Aesculus sylvatica) by R&T Ware
​Representative wildflowers in order by scientific name
Representative ferns in order by scientific name
Northern maidenhair fern (Adiatum pedatum) by Richard and Teresa Ware
Broad beech fern (Phegopteris hexagonoptera) L. Edwards
New York Fern (Parathelypteris novaboracensis) by J. Pakchar
Christmas fern (Polystichum acrosticoides) with fertile frond. J. Pakchar
Picture

​Contents of this site are based on the book The Natural Communities of Georgia, which can be purchased from the University of Georgia Press, Amazon, and other vendors.
​



This site is a work in progress: comments and suggestions are welcome.  Email: ​naturalcommsga@gmail.com

  • Home
  • Piedmont
    • Piedmont Overview
    • Mesic (Moist) Forests
    • Oak-Pine-Hickory Forests
    • Bottomland/Floodplain Forest
    • Pine-Oak Woodlands
    • Montane Longleaf
    • Prairies and Savannas (Upland)
    • Wet Meadows and Marshes
    • Granite Outcrops
    • Glades, Barrens, and Woodlands
    • Ultramafic Barrens and Woodlands
    • Cliffs and Bluffs
    • Flatwoods (Upland Depression Swamps)
  • Blue Ridge
    • Blue Ridge Overview
    • Northern Hardwoods
    • Montane Oak Forests
    • Fertile Cove Forests
    • Acidic Cove Forests
    • Oak Forests
    • Pine-Oak Woodlands
    • High Elevation Outcrops
    • Mafic Dome Rock Outcrops
    • Rock Outcrops, Cliffs and Bluffs
    • Ultramafic Barrens and Woodlands
    • Mountain Bogs
    • Seepage Wetlands
    • Spray Cliffs
    • Montane Bottomlands and Flooplains
  • Cumberland Ridge & Valley
    • Cumberland Ridge & Valley Overview
    • Mesic Forests
    • Dry Calcareous Forests
    • Acidic Oak-Pine Forests
    • Pine-Oak Woodlands
    • Montane Longleaf
    • Calcareous (Cedar) Glades
    • Calcareous Cliffs
    • Calcareous Prairies and Barrens
    • Acidic Glades and Barrens
    • Acidic Cliffs and Outcrops
    • Flatwoods
    • Acidic Seepage Wetlands
    • Bottomlands and Flooplains
  • Impact of Rock Type on Plant Composition
  • Plant Adaptations to Deciduous Forests