Polygonella
Botanical name: Polygonella
Polygonella
Botanical name: Polygonella
Description
When the genus is defined narrowly polygonella species are annual or perennial herbaceous plants rarely shrubby with much branched stems. The leaves are arranged alternately with a length greater than the width. The flowers are usually bisexual rarely unisexual and have five (occasionally four) tepals the outer being slightly different from the inner ones. The fruit is three-sided. As of winter 2019 plants of the World Online accepted 129 species. The genus primarily grows in northern temperate regions.
Species of Polygonella
Tall jointweed
When the genus is defined narrowly tall jointweed species are annual or perennial herbaceous plants rarely shrubby with much branched stems. The leaves are arranged alternately with a length greater than the width. The flowers are usually bisexual rarely unisexual and have five (occasionally four) tepals the outer being slightly different from the inner ones. The fruit is three-sided. As of winter 2019 Plants of the World Online accepted 129 species. The genus primarily grows in northern temperate regions.
Coast jointweed
When the genus is defined narrowly coast jointweed species are annual or perennial herbaceous plants rarely shrubby with much branched stems. The leaves are arranged alternately with a length greater than the width. The flowers are usually bisexual rarely unisexual and have five (occasionally four) tepals the outer being slightly different from the inner ones. The fruit is three-sided. As of winter 2019 Plants of the World Online accepted 129 species. The genus primarily grows in northern temperate regions.
Scientific Classification
Phylum
Vascular plants Class
Dicotyledons Order
Pinks, cacti, and allies Family
Buckwheat Genus
Polygonella 
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