Jumpseed

Persicaria virginiana

''Persicaria virginiana'', also called jumpseed, Virginia knotweed or woodland knotweed is a North American species of smartweed within the buckwheat family. It is unusual as a shade-tolerant member of a mostly sun-loving genus. Jumpseed is a perennial, named for its seeds which can "jump" several feet when a ripe seedpod is disturbed.

''Persicaria virginiana'' blooms in midsummer to late summer/early fall. It has a stalk of small white flowers.
Jumpseed This is a picture of Jumpseed at Patapsco Valley State Park in Howard County, Maryland. Geotagged,Persicaria virginiana,Spring,United States

Appearance

Like other ''Persicaria'', jumpseed has alternate leaves, with fine-hairy stipular sheaths with bristle-fringed edges which often turn brownish. Flowers, widely spaced along slender stalks, are white to greenish-white, rarely pink-tinged, and fruiting flowers have 2 downward-pointing hook-tipped styles. ''Persicaria virginiana'' is easily distinguished from most other ''Persicaria'' species by its much larger, more oval-shaped leaves, although a few species also have large leaves. It sometimes has a chevron-shaped marking on the leaves; often a single plant will have this marking on some leaves but not others.

Cultivars and naturalized populations from cultivation show much greater variation than wild-type plants, sometimes having variegation or have more involved red patterning, and sometimes having red or pink flowers.

Distribution

''Persicaria virginiana'' has a wide native range throughout most of Eastern North America, from Ontario and Quebec, south to Florida, and west as far as Texas, Nebraska, and Minnesota.

It naturally occurs in full to partial shade, on riverbanks, woods, cliffs, and rocks.

Habitat

''Persicaria virginiana'' has a wide native range throughout most of Eastern North America, from Ontario and Quebec, south to Florida, and west as far as Texas, Nebraska, and Minnesota.

It naturally occurs in full to partial shade, on riverbanks, woods, cliffs, and rocks.

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderCaryophyllales
FamilyPolygonaceae
GenusPersicaria
SpeciesP. virginiana