Supporting Organizations

Vitis rotundifolia

This project is a collaboration among the United States Botanic Garden, San Diego Botanic Garden, USDA ARS, Geospatial Centroid at Colorado State Univeristy, and NatureServe. We are all grateful for your time and consideration in this evaluation effort.

Vitis Home Page
All Vitis County Maps


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Listing of all occurrence records for all species
Listing of all USDA Plants and Bonap records

Supporting information on method and taxonomy

Taxonomic concept


Taxon : Vitis rotundifolia
Accepted Synonym(s) : Muscadinia rotundifolia, Vitis rotundifolia var. munsoniana, Vitis munsoniana, Muscadinia munsoniana, Vitis rotundifolia var. pygmaea, Vitis rotundifolia var. rotundifolia
Excluded from concept : NA
NatureServe Concept Reference: Kartesz 1994
Relationship to Flora of North America: Equal
Taxonomic Notes: There are two commonly recognized subgenera in the Grape Family (Vitaceae). The subgenus Vitis, includes the majority of species in the family. The subgenus Muscadinia includes two species: Vitis rotundifolia, including its varieties, and Vitis popenei (Flora of North America 2016). Some authors (e.g., Weakley et al. 2020) elevate subgenus Muscadinia to the rank of genus (Wen et al. 2018). Subgenus Muscadinia differs from subgenus Vitis in having simple tendrils, larger fruits, seeds with longer ventral infolds, and 40 chromosomes rather than 38 (Wen et al. 2018).
NatureServe Classification Status: Accepted/Standard
NatureServe Distribution: United States (N5): AL (SNR), AR (SNR), DE (S4), FL (SNR), GA (S5), IN (SNR), KY (SNR), LA (SNR), MD (S4), MO (SNR), MS (SNR), NC (S5), OK (SNR), SC (SNR), TN (SNR), TX (SNR), VA (S5), WV (S1)
NatureServe Explorer: https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.132816/Vitis_rotundifolia
This species is included in FNA : TRUE

Details on the map elements

County Level Features

All county level features report information that as aggregated to the county level. This include text reference to the county (state/county) and spatial point reference that occur within the county.

  • Counties with a record: This presence absence map shows a county as green if it has at least one record from any of the evaluated sources.

  • Sum of records within County: This layer depicts the total number of unique records of a species across all sources within a county.

  • Counties listed in USDA Plants and/or Bonap Only (No occurrence points) These counties only contain a reference from USDA Plants and/or BONAP. There are no identified iNaturalist, herbarium, or germplasm occurrences from these locations.

  • Counties with one or more Herbarium or Germplasm Occurrence: : hese counties have at least one herbarium and/or germplasm occurrence. There may also be additional records within this county(iNaturalist, USDA Plants, BONAP, NatureServe).

  • Counties with iNaturalist Observation only: These counties only have species observations from iNaturalist.

Occurrence Features

  • Germplasm Occurrences: : Occurrence data with living specimens stored in a Genebank or Botanical Garden.

  • Herbarium Occurrences with web url: Occurrence data of herbarium specimens, which includes an url for the source herbarium data.

  • Herbarium Occurrences without web url: Occurrence data of herbarium specimens.

  • iNaturalist observation data:: Research grade observations from iNaturalist.

General Methods

Gathering Data

Data was gathered at the Genus level from the following

public repositories

Sourced through communication with data owners

Data Standardization and Taxonomy

data standardization : All data sets were altered to matched a standard data structure. The specific translation of data sets can be seen here.

Taxonomy: The full synonyms cross walk can be viewed here.

Assigning the State and County to each occurrence

When latitude and longitude data was used to assign the state/country when possible. If no latitude and longitude data was provided, the state and county names were pulled from the attribute data associated with the record. If a state or county name could not be assigned by either method the record was excluded from this analysis.

Flora of North America

If state level distribution information was provided for a given specific species, that information was used to filter the states in which counties are evaluated.

Map of County and Occurrence Records

Summary of Occurrence Data

This table includes all records used to generate the map.

Data summarized to each County

The table below display additional attribute data for all the counties with known occurrences. Columns can be filtered and sorted. The following states are included in this FNA state designation Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Oklahoma, Missouri, Kentucky, Arkansas, Tennessee, West Virginia

Data exluded by Flora of North America state filter

The above map and table includes all occurrance data that falls within the established state range defined by Flora of North America.

If the state range for a species was define by Flora of North America all the occurrence records will be shown on the map and above table.

The table below shows the occurrence data that falls outside the established Flora of North America states.

The following States are included in the FNA description : Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Oklahoma, Missouri, Kentucky, Arkansas, Tennessee, West Virginia