| Author | Munson | |
| Distribution | This species occurs essentially in the Coastal Plain, with the majority of records for the northern half. It apparently does not occur in the Piedmont and Mountains, except along the eastern and southern edgee of the Piedmont.
Ranges north only to southeastern VA, and south to southern FL and west to MS. | |
| Abundance | Apparently fairly common in the northern half of the Coastal Plain, but less numerous in the southern portions. | |
| Habitat | This is a wetland species found in bottomland forests, wooded stream banks, marshes (at least along the edges), and wet thickets. |
| Phenology | Flowers from late May into June, and fruits from August to October. | |
| Identification | This is a high-climbing deciduous woody vine, like essentially all other Vitis species. As it is a recent split from the V. cinerea complex, as is V. baileyana, these two species are quite similar. Both have angular branchlets as opposed to rounded; however, this species has pubescent to tomentose branchlets, whereas V. baileyana has generally smooth branchlets. See Weakley (2018) for other characters. Most of the species in this genus are difficult to separate from each other, so this species, recently considered as one of several varieties of V. cinerea, is certainly tricky to identify by most biologists. | |
| Taxonomic Comments | Weakley (2018) has split this taxon out as a good species; most references still list it as V. cinerea var. floridana plus V. cinerea var. cinerea.
Owing to difficulty of identification of nearly all Vitis species from photographs, for now no iNaturalist photo reports are included on the range maps. In fact, very few of these have been given a Research Grade status of approval by an expert. | |
| Other Common Name(s) | Simpson's Grape, Curtis' Grape | |
| State Rank | [S4?] | |
| Global Rank | G4 | |
| State Status | | |
| US Status | | |
| USACE-agcp | | |
| USACE-emp | | |
