Print Report
CEGL007012 Ozark Riverine Cobble - Gravel Riverscour Sparse Vegetation
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ozark Riverine Cobble - Gravel Riverscour Sparse Vegetation
Colloquial Name: Ozark Riverine Cobble - Gravel Flats
Hierarchy Level: Association
Type Concept: This riverine gravel and cobble flats community is found in the Ozark and Ouachita regions of the United States. Stands occur along large and small rivers (including the Buffalo River in Arkansas) where gravel and cobble material has been deposited on the first terraces. The substrate consists of a mixture of cobbles, gravel and sand, and soils are poorly developed or absent. Sites can be flooded in spring. Vegetation is sparse and usually consists of scattered patches of annual grasses and annual or biennial forbs under 1 m tall. Shrubs are also scattered and uncommon, including Lindera benzoin, Alnus serrulata, and Hamamelis vernalis.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This is a sparse vegetation type to represent open gravel/cobble bars, in contradistinction to shrub-dominated areas, such as ~Hamamelis vernalis - Cornus obliqua - Hypericum prolificum Riverscour Shrubland (CEGL003898)$$, ~Salix caroliniana Ozark Riverscour Shrubland (CEGL007064)$$, and others.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Vegetation is sparse and usually consists of a variable mixture of annual grasses, annual or biennial forbs, and annual vines under 1 m tall. Some native and exotic taxa that may be present include Cyperus esculentus, Lespedeza cuneata, Arctium minus, Cynodon dactylon, Digitaria sp., Lepidium virginicum, Ipomoea coccinea, Cuscuta gronovii, Setaria pumila (= Setaria glauca), Rubus trivialis, and Diodia virginiana (NatureServe unpubl. data). Scattered taller plants may be present, including Sorghum halepense and Ambrosia artemisiifolia.
Dynamics: Annual flooding and scouring strongly influence this system and may rework the substrate, removing woody vegetation, and creating the sparse conditions. Stands will experiences periodic strong flooding.
Environmental Description: This community is found along major rivers where gravel has been deposited on the first terraces of Ozark and Ouachita rivers. The substrate consists of a mixture of cobbles, gravel and sand, and soils are poorly developed or absent. Sites can be flooded in spring.
Geographic Range: This riverine gravel flats community is found in the Ozark and Ouachita regions of Missouri, Arkansas and Oklahoma.
Nations: US
States/Provinces: AR, MO?, OK
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.860018
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nd Eastern North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D323 | 2.C.4.Nd |
| Macrogroup | 2.C.4.Nd.4 Eastern North American Riverscour Vegetation Macrogroup | M881 | 2.C.4.Nd.4 |
| Group | 2.C.4.Nd.4.a Central Interior-Appalachian Riverscour Barrens & Prairie Group | G753 | 2.C.4.Nd.4.a |
| Alliance | A3794 Hazel Alder - Ozark Witch-hazel - Coastal Plain Willow Riverscour Alliance | A3794 | 2.C.4.Nd.4.a |
| Association | CEGL007012 Ozark Riverine Cobble - Gravel Riverscour Sparse Vegetation | CEGL007012 | 2.C.4.Nd.4.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Ozark Riverine Cobble - Gravel Flats Sparse Vegetation (Hop et al. 2012a)
- Hop, K., M. Pyne, T. Foti, S. Lubinski, R. White, and J. Dieck. 2012a. National Park Service vegetation inventory program: Buffalo National River, Arkansas. Natural Resource Report NPS/HTLN/NRR--2012/526. National Park Service, Fort Collins, CO. 340 pp.
- 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.