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Douglas's Knotweed
Polygonum douglasii
Green
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Douglas's Knotweed - Polygonum douglasii Green: https://marylandbiodiversity.com/view/16477
Non-native
Kingdom Plantae
Division Tracheophyta
Class Magnoliopsida
Order Caryophyllales
Family Polygonaceae
Genus Polygonum
View Taxonomy
Kingdom Plantae
Division Tracheophyta
Class Magnoliopsida
Order Caryophyllales
Family Polygonaceae
Genus Polygonum
About Taxon
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Range of years
1959
1959
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for Jan - Dec from 2019 - 2020
Source: Maryland Biodiversity Project database
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Source: Maryland Biodiversity Project database
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