Polygonum ramosissimum
PlantsFamily: Polygonaceae · Genus: Polygonum
About
Polygonum ramosissimum is a North American species of herbaceous annual plants in the buckwheat family, widespread across much of Canada and the United States, where it is commonly called bushy knotweed. It is susceptible to downy mildew caused by the oomycete species Peronospora americana.
Summary from Wikipedia
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Growing details and traits for Polygonum ramosissimum in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.