Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Polygonella articulata (L.) Meisn. image
Photographer: Kitty Kohout           

Caroline A. Creevey

Hugh H. Iltis

Kenneth J. Sytsma
Family Polygonaceae
Polygonella articulata (L.) Meisn.
coastal joint-weed
Polygonella: diminutive of Polygonum; from poly for "many" and gonu for knee, referring to many joints
articulata: jointed, as in plants such as bamboos and horsetails
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, annual, 4"-20" tall forb, thin, wiry; stems branched toward the top
Flower: white to red, 5-parted, 1/8" long, nodding on stalks jointed near the base, petals and petal-like sepals loosely open, 8 stamens; inflorescence 3/4"-1 1/3" terminal, branched cluster (raceme-like); blooms July-Oct.
Leaf:narrow with edges in-rolled backward; alternate
Habitat: dry; sands, cliffs; in sandy, acidic soil

More Information Natural Communities Herbarium Specimens
All Polygonella list Google- Images or Text

Flora of North America (off site)
Delopyrum articulatum (L.) Small
Polygonum articulatum L.

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