Plants

Fool's knotweed
Persicaria pubescens

loach fishing
Persicaria sagittata

daughter-in-law's bottom
Persicaria senticosa

Knotweed
Persicaria taquetii

Gomari
Persicaria thunbergii

side
Persicaria tinctoria

Polygonum hydropiper
Persicaria trigonocarpa

Virginia Spike
Persicaria virginiana

Sticky knotweed
Persicaria viscofera

Polygonum persicaria
Persicaria viscosa

Butterbur fragrance
Petasites fragrans

coltsfoot
Petasites japonicus