Polygonum ramosissimum Michx. var. prolificum Small

vernacular bushy knotweed — variety · Polygonaceae

USDA: PORAP
GBIF: 5652415 syn.
Rank: variety

bushy knotweed (Polygonum ramosissimum var. prolificum) — Platephotograph · William Van HemessenCC BY-NC source · iNaturalist ↗

§2Habit & range

Growth habit: Forb/herb
Duration: Annual
Group: Dicot
Family: Polygonaceae Juss.
Genus: Polygonum

§2a

Native status, by region

AK Alaska Introduced
CAN Canada Native
L48 Lower 48 States Native

§2b

County-level range

· 64 counties across 14 states/territories

Legend Native · 63 Introduced · 1 Both · 0 Hover a county for detail.

§3Cultivation

No cultivation specs.

USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.

§4Counties, by state