Symphyotrichum divaricatum (Nutt.) Nesom

Locations ofSymphyotrichum divaricatum (Nutt.) Nesom in Virginia

Show image with county labels

Detail

Family
Asteraceae
Botanical Name
Symphyotrichum divaricatum (Nutt.) Nesom
Common Name
Southern Annual Salt-marsh Aster
Synonym(s)
Symphyotrichum subulatum (Michx.) G.L. Nesom var. parviflorum (Nees) S.D. Sundberg; Aster subulatus Michx. var. ligulatus Shinners
Flora of Virginia Name/Status
Symphyotrichum divaricatum (Nuttall) Nesom
Comments
Reported as new to Virginia by Nesom in Castanea 65:80 (2000) based on a collection from Ft. Eustis in 1973. More recently, additional populations have been found in ten additional counties and will doubtless be found in others going forward. Cronquist considers this one of 3 varieties of Aster subulatus having broader and longer ligules, a pappus straighter at maturity, and not being confined to maritime habitats. The justification for species status is given by Nesom in Sida 21:2125-2140 (2005).
Habitat
Disturbed fields, clearings, and bottomlands. Rare, Coastal Plain and Piedmont; known only from the City of Newport News, Hanover County, Mecklenburg County, and York County. The Newport News (Ft. Eustis) specimen came from a mowed open field in front of skeet range. The Mecklenburg record came from an occasionally flooded, alluvial bottom managed for game. In York County, the species is locally abundant in a weedy powerline right-of-way. In Hanover County, populations are locally abundant in the highway ROW of Interstate 295. The species is evidently spread around by mowing equipment.
Native Status
Introduced

To save this map, right-click (control-click for Mac users) on the map and choose "Save Image As...".