Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales
WEAKLEY'S FLORA (2/8/20):
Polygonella americana
FAMILY
Polygonaceae
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Southern Jointweed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Polygonella americana
FAMILY
Polygonaceae
SYNONYMOUS WITH
The Biota of North America Program. BONAP (Kartesz, 2015)
Polygonum americanum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 063-06-001:
Polygonella americana
FAMILY
Polygonaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Polygonella americana
COMMON NAME:
Southern Jointweed, Showy Jointweed
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_poam3_001_lvd
)
John Cely jec_polygonella1_02
September Richland County SC
A hillside in full bloom is a stunning sight - John Cely
)
John Cely jec_7956
October Richland County SC
When not in bloom it resembles a small cedar, per www.missouriplants.com.
)
John Cely jec_7956b
October Richland County SC
Petals absent. Sepals to 3mm long, white, per Vascular Flora of the Carolinas.
)
John Cely jec_7960
October Richland County SC
WEAKLEY'S FLORA (2/8/20):
Polygonella americana
FAMILY
Polygonaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Polygonella americana
FAMILY
Polygonaceae
SYNONYMOUS WITH
The Biota of North America Program. BONAP (Kartesz, 2015)
Polygonum americanum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 063-06-001:
Polygonella americana
FAMILY
Polygonaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Polygonella americana
2552
Forb (sometimes somewhat woody at base)
Perennial
Native to the Carolinas & Georgia
Documented growing wild in GA NC SC
Uncommon (rare in NC)
Look for it in sandhills, other dry woodlands, glades, and barrens with sandy or rocky soil, per Weakley's Flora
Click here to see a more detailed map from University of North Carolina at Chapel Hill Herbarium,
or click here to see a map from SERNEC, a consortium of southeastern herbaria.
LEAVES:
Simple
Alternate
FLOWER:
Summer/Fall
White
Bisexual
5 sepals (three inner, two outer)
Petals absent
Superior ovary
FRUIT:
Summer/Fall
Reddish-brown
Nutlet
TO LEARN MORE about this plant, look it up in a good book!
- Guide to the Wildflowers of SC p229
- Native Shrubs and Woody Vines of the Southeast p058
- Woody Plants of the Southeastern US: A Winter Guide p244
- Wildflowers of the Sandhills Region p107