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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  Persicaria longiseta (Bruyn) Moldenke image
Photographer: Emmet J. Judziewicz           

Emmet J. Judziewicz

Emmet J. Judziewicz

Emmet J. Judziewicz
Family Polygonaceae
Persicaria longiseta (Bruyn) Moldenke
Oriental lady's-thumb
Persicaria: peach-like, the medieval name for knotweed
longiseta: longus for "long, extended;" seta for “a bristle or stiff hair of an animal” from longus for "long" or "extended" and seta for "a bristle or stiff hair of an animal"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - locally established
Plant: drooping, annual, 12"-32" tall forb; branched stems smooth, not glandular, overlapping nodes with hairy bristles up to 1/3" long; taprooted
Flower: pink to rose, 5-parted, petals and petal-like sepals connected at the base; inflorescence 3/4"- 1 1/2" dense, slender, spike-like clusters (raceme) on stalks jointed at the top
Fruit:black, smooth, shiny, dry, 3-angled seed
Leaf:alternate, dark green, thin, lance-like to elliptical
Habitat: moist; disturbed sites
Notes: similar to P. careyi-glandular- stemmed; P. maculosa-short-haired nodes

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

Flora of North America (off site)
Polygonum cespitosum Blume var. longisetum (Bruyn) Stewart
Polygonum longisetum Bruyn

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