Mid-Atlantic Invaders Tool

willowleaf lettuce

Lactuca saligna

L.

Taxon, Habit: Plant, Forb

Habitat: Terrestrial/Wetland

U.S. Nativity: Introduced

Species Synonym(s): None

Common Name(s): None

Family: Asteraceae (Aster Family)

Family Synonym(s): None

Native Range (GRIN):

Selected images from Bugwood.org

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Foliage

Dan Tenaglia, Missouriplants.com

Flower

Dan Tenaglia, Missouriplants.com

Flower

Joseph M. DiTomaso, University of California - Davis

Feature

Joseph M. DiTomaso, University of California - Davis

Uses

Landscape Ornamental Use (GRIN): No

All Uses (GRIN):

Distribution Map (EDDMapS)

Wetland Indicator

Summary: willowleaf lettuce (Lactuca saligna) is a Terrestrial/Wetland species.

Atlantic and Gulf Coastal Plain (AGCP):

Mid-Atlantic Coastal Plain regions

Eastern Mountains and Piedmont (EMP):

Mid-Atlantic Piedmont and Mountain regions

Northcentral and Northeast (NCNE):

Northern parts of PA and NJ (and beyond)


Legend (data from U.S. Army Corps of Engineers)

OBL (Obligate wetland): Almost always occurs in wetlands (estimated probability > 99%) under natural conditions

FACW (Facultative wetland): Usually occurs in wetlands (estimated probability 67% - 99%), but occasionally found in non-wetlands

FAC (Facultative): Equally likely to occur in wetlands (estimated probability 34% - 66%) or non-wetlands

FACU (Facultative upland): Usually occur in non-wetlands (estimated probability 67% - 99%), but occasionally found in wetlands (estimated probability 1% - 33%)

UPL (Obligate upland): Occur almost always (estimated probability > 99%) in non-wetlands under natural conditions

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Asterales
Family: Asteraceae
Genus: Lactuca
Subject: Lactuca saligna L.