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Classification

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Classification for Kingdom Plantae Down to Subspecies Polygonum douglasii Greene ssp. johnstonii (Munz) J.C. Hickman

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Kingdom Plantae – Plants

Subkingdom Tracheobionta – Vascular plants

Superdivision Spermatophyta – Seed plants

Division Magnoliophyta – Flowering plants

Class Magnoliopsida – Dicotyledons

Subclass Caryophyllidae

Order Polygonales

Family Polygonaceae – Buckwheat family

Genus Polygonum L. – knotweed P

Species Polygonum douglasii Greene – Douglas' knotweed P

Subspecies Polygonum douglasii Greene ssp. johnstonii (Munz) J.C. Hickman – Johnston's knotweed P

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