Persicaria amphibia var. emersa (Michaux) J.C. Hickman

Persicaria amphibia var. emersa (Michaux) J.C. Hickman is an accepted variety name.

Vernacular names

• renouée émergée Darbyshire et al., 2000

• long-root smartweed Wisconsin Flora
• swamp knotweed Anions
• swamp smartweed Klinkenberg, 2010+

Synonyms

• Persicaria coccinea (Muhlenberg) Greene FNA Ed. Comm., 2005
• Persicaria coccinea subsp. pratincola (Greene) Á. Löve & D. Löve TROPICOS
• Persicaria muhlenbergii (Meisner) Small FNA Ed. Comm., 2005
• Persicaria pratincola Greene TROPICOS
• Polygonum amphibium var. emersum Michaux FNA Ed. Comm., 2005
• Polygonum coccineum Muhlenberg FNA Ed. Comm., 2005
• Polygonum coccineum Muhlenberg var. coccineum TROPICOS
• Polygonum coccineum var. pratincola (Greene) Stanford FNA Ed. Comm., 2005
• Polygonum coccineum var. terrestre Willdenow ex Link TROPICOS
• Polygonum emersum (Michaux) Britton FNA Ed. Comm., 2005
• Polygonum muhlenbergii (Meisner) S. Watson TROPICOS
• Polygonum pratincolum (Greene) Fedde IPNI

Distribution

• Map view
• List view

• Native
• Introduced
• Ephemeral
• Excluded
• Extirpated
• Doubtful
• Absent

Classification

Class	Equisetopsida
Subclass	Magnoliidae
Superorder	Caryophyllanae
Order	Caryophyllales
Family	Polygonaceae
Subfamily	Polygonoideae
Tribe	Persicarieae
Genus	Persicaria
Species	Persicaria amphibia
Variety	Persicaria amphibia var. emersa

Habit

Herb