Robert W. Freckmann Herbarium


  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
(Glossary)

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

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

         
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