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
Piedmont Bluffs and Cliffs
 ​Cliffs are nearly vertical rock outcroppings:  when they occur along rivers, they are called bluffs.  Large rock outcrops with steep vertical faces are included here.   Environmental conditions - and therefore plant species -  vary greatly on bluffs, depending upon whether the bluff is facing north (cooler) or south (warmer); whether there is seepage; whether a site is low down (shaded and more moist) or near the ridge top (more exposed and drier); and how much soil has collected on ledges and between rocks.

​What's special:  Cliffs and bluffs are beautiful, dramatic natural features with scenic views.  They  provide habitat for some rare plants and animals in the Georgia Piedmont, such as the peregrine falcon.

Related to: The glade, barrens, and woodlands natural community is often embedded within river bluffs and cliffs.  Steep-sided granite outcrops and mafic outcroppings grade into bluffs and cliffs, with similar steep relief.
​

Learn MORE HERE about plant adaptations to rocky places.

​
Learn MORE HERE about Piedmont rock types and their affect on plants.

​
Landscapes
Birds
​Plants  ​​
​

Click on a plant name to see images. ​ Plants listed in order by scientific name. ​​Terms such as "rich", "calcareous" and "mafic" are from The Flora of the Southern and Mid-Atlantic States, here.  ​
​
​Trees
Chalk maple Acer leucoderme (particularly over mafic or calcareous rock)
​Red maple Acer rubrum​
Downy serviceberry  Amelanchier arborea
Dwarf hackberry/Georgia hackberry Celtis tenuifolia (often over calcareous substrate)

Redbud Cercis canadensis (esp. over mafic or calcareous rocks)
White ash Fraxinus americana (calcareous or mafic glades)
Eastern red cedar  Juniperus virginiana (occurring most on mafic or calcareous rock)
Shortleaf pine Pinus echinata  
​
Loblolly pine  Pinus taeda
Virginia pine Pinus virginiana
Blackjack oak Quercus marilandica
Rock chestnut oak Quercus montana
Post oak Quercus stellata
Winged elm Ulmus alata

Shrubs
Fringe-tree  Chionanthus virginicus
Parsley hawthorn (parsley) Crataegus marshallii (especially over calcareous or mafic rocks)​
Oakleaf hydrangea Hydrangea quercifolia
Mountain laurel Kalmia latifolia
Hairy mock orange Philadelphus hirsutus (esp. over mafic or calcareous rock)
NInebark Physocarpus opulifolius (esp. over mafic or calcareous rocks)
Wafer ash Ptelea trifoliata (esp. over calcareous or mafic rock)
Gorge rhododendron Rhododendron minus
Fragrant sumac Rhus aromatica (usually over mafic or calcareous rocks)
Winged sumac  Rhus copallinum

Coralberry Symphoricarpos orbiculatus (esp. over mafic or calcareous rocks)
Sparkleberry Vaccinium arboreum
Hillside blueberry   Vaccinium pallidum
Deerberry Vaccinium stamineum 
Southern black haw Viburnum rufidulum (especially common over mafic sites, but not at all restricted to them)
Curlyleaf yucca Yucca filamentosa

Vines
Trumpet vine Campsis radicans
Carolina jessamine Gelsemium sempervirens
Virginia creeper Parthenocissus quinquefolia
Greenbrier (whiteleaf/sawbrier) Smilax glauca
Poison ivy Toxicodendron radicans
Muscadine Vitis rotundifolia 

Ground Layer
Wildflowers
Rockcress/Sicklepod Boechera canadensis
Partridge pea Chamaecrista fasciculata
Glade rushfoil  Croton willdenowii 
Poorjoe Diodia teres 
Eastern flowering spurge Eurphorbia corollata
Alumroot Heuchera americana
Veiny hawkweed Hierarcium venosum
Pineweed  Hypericum gentianoides
Dwarf dandelion Krigia virginica
Blazing star (small head)  Liatris microcephala
Carolina lily Lilium michauxii
Toadflax Nuttallanthus canadensis
​Sundrops Oenothera fruticosa
Appalachian rockpink  Phermeranthus teretifolius
Silkgrass Pityopsis graminifolia
Shooting star (eastern) Primula meadia (primarily with calcareous or mafic rock; esp. with seepage)
Fire pink Silene virginica
Starry campion Silene stellata
Pencil-flower  Stylosanthes biflora
Spiderwort (hairy)   Tradescantia hirsuticaulis  
Spiderwort (smooth)  Tradescantia ohiensis

​Blue curls Trichostema dichotomum

Grasses, Sedges and Rushes
Old-field broomstraw 
 Andropogon virginicus
Poverty oat grass Danthonia spicata
​Downy oat grass Danthonia sericea
Little bluestem  Schizachyrium scoparium
​
Ferns

Ebony spleenwort Asplenium platyneuron
Marginal wood-fern Dryopteris marginalis
​Hairy lipfern Myriopteris lanosa
Resurrection fern  Pleopeltis michauxiana
Rockcap fern Polypodium virginianum
Blunt-lobed cliff fern Woodsia obtusa


Representative trees in order by scientific name
​Representative shrubs in order by scientific name
Representative vines in order by scientific name
Representative ground layer plants in order by scientific name.  
Representative Ferns in scientific order
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