Doorweed     Information
INVASIVE
Scientific Name:Polygonum aviculare
Altenative names, synonyms, exist for this plant. See RPC Plant Details and check the refernce websites for additional information.
Synonym:Polygonum arenastrum
Common Name Synonyms: Common Knotgrass, Oval-leaf knotweed


NOTES: Native to Europe.

Additional Information

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Doorweed
Genus species: Polygonum aviculare
     Synonym: Polygonum arenastrum
Common Names: Doorweed
Common Knotgrass
Oval-leaf knotweed
Family Name: Polygonaceae  
Annual or perennial herbs, or woody vines; leaves alternate, simple, mostly entire, stipules typically united into an ocrea (a tubular, papery sheath); flowers bisexual or unisexual, regular, in short axillary clusters or in various elongate inflorescences; fruit a trigonous or lenticular achene.
Seed Type: Angiosperm
Origin:  
Native: native to North America.
Non-native: not native to North America.
Introduced Native: native to North
America, but not Rowe Woods.
* Definitions based on the USDA
terminology
Nonnative
Category:Wildflower
Flower Color:Green/Brown
White
Pink/Red
CNC Habitat: Krippendorf Arboretum
Backyard Habitat
Polinator Garden
Identified by:M. Becus
Months in Bloom:  
The highlighted month(s) in this chart indicate when the plant has been observed blooming.
Jan Feb Mar Apr May
Jul Aug Sep Oct Nov Dec

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