Print Report
CEGL008546 (Hydrangea arborescens) / Heuchera villosa - Dicentra eximia - Campanula divaricata Cliff Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: (Wild Hydrangea) / Hairy Alumroot - Appalachian Bleeding-heart - Small Bonny Bellflower Cliff Shrubland
Colloquial Name: Southern Appalachian Moist Sandstone Cliff
Hierarchy Level: Association
Type Concept: This type occurs on moist, shaded, north-facing cliffs of sedimentary rocks (sandstones and siltstones) in the Ridge and Valley and adjacent Blue Ridge of Tennessee and some adjacent states. It has sparse cover of vascular plants, which root in the crevices. The most abundant vascular species are Heuchera villosa var. villosa, Dicentra eximia, Campanula divaricata, Dryopteris marginalis, Polypodium appalachianum, and Eurybia divaricata. Scattered woody plants are also present, rooting in crevices, and include Rhododendron minus, Hydrangea arborescens, Clethra acuminata, Toxicodendron radicans, and Parthenocissus quinquefolia.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This community is arguably also closely related to ~Appalachian Acidic Cliff Alliance (A2071)$$. It seems better placed here, because of the overall floristic composition, the subcalcareous sedimentary rock substrate, the relatively continuously moist conditions, and the high cover of nonvascular plants. The description and concept of the type may require substantial revision when additional information is available. An example of this community has been documented at Doe River Gorge #1 (Plot CHER.38) (NatureServe Ecology unpubl. data 2000).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The most abundant vascular species are Heuchera villosa var. villosa, Dicentra eximia, Campanula divaricata, Dryopteris marginalis, Polypodium appalachianum, and Eurybia divaricata (= Aster divaricatus). Scattered woody plants are also present, rooting in crevices, and include Rhododendron minus, Hydrangea arborescens, Clethra acuminata, Toxicodendron radicans, and Parthenocissus quinquefolia.
Dynamics: This community is generally stable. Periodic rock fall occurs.
Environmental Description: This community is known from north-facing, seepy cliffs over siltstones and shales of intermediate composition, at 640-762 m (2100-2500 feet) elevation, in the Ridge and Valley and adjacent Blue Ridge.
Geographic Range: This type is known from a small area of Ridge and Valley and adjacent Blue Ridge (with sedimentary inclusions) in Tennessee. Its potential occurrence is more widespread.
Nations: US
States/Provinces: GA?, TN
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688861
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G2
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 6 Open Rock Vegetation Class | C06 | 6 |
| Subclass | 6.B Temperate & Boreal Open Rock Vegetation Subclass | S04 | 6.B |
| Formation | 6.B.1 Temperate & Boreal Cliff, Scree & Other Rock Vegetation Formation | F034 | 6.B.1 |
| Division | 6.B.1.Na Eastern North American Temperate Cliff, Scree & Rock Vegetation Division | D051 | 6.B.1.Na |
| Macrogroup | 6.B.1.Na.1 Shrubby Fivefingers - Rock Polypody / Cup Lichen species Eastern North American Cliff & Rock Vegetation Macrogroup | M111 | 6.B.1.Na.1 |
| Group | 6.B.1.Na.1.c Appalachian Cliff & Rock Vegetation Group | G840 | 6.B.1.Na.1.c |
| Alliance | A2072 Wild Hydrangea / Hairy Alumroot Appalachian Circumneutral Cliff Alliance | A2072 | 6.B.1.Na.1.c |
| Association | CEGL008546 (Wild Hydrangea) / Hairy Alumroot - Appalachian Bleeding-heart - Small Bonny Bellflower Cliff Shrubland | CEGL008546 | 6.B.1.Na.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- NatureServe Ecology - Southeastern United States. No date. Unpublished data. NatureServe, Durham, NC.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.