Lactuca floridana

florida wild lettuce, woodland lettuce, florida lettuce
Family

Asteraceae

Leaf Arrangement

alternate, basal (rosulate)

Leaf Attachment

sessile

Leaf Margin

dentate

Leaf Type

cauline, simple

Leaf Shape

elliptic, lanceolate, deltoid, ovate

Growth Form

forb

Flower Color

blue, purple

Flower Month

July

Height (meters)

0.5 - 3.0

Milky Sap

Yes

Armed/Unarmed

Unarmed

Origin

native

Lifespan

annual, biennial

Growing Season

Warm season


Wetland Class

FACU

Prairie Coefficient of Conservatism

1

Field Characters

Similar to Lactuca canadensis which has blue flowers, while Lactuca canadensis have yellow flowers. Terminal lobes of leaf triangular. Hollow stems. Basal rosette the 1st year.

Animal Use

The following information is for the genus Lactuca: Animals that eat the seeds: Goldfinch. Animals that eat the plant: Antelope, White-tailed deer (Martin et al. 1951).

Natural History

The Cajun name for this plant, "laitue," is French for lettuce and refers to the fact that it has milky sap and is edible like lettuce (Holmes 1990). The young leaves can be cooked in one change of water to remove the bitter milk (Medsger 1966). Usually found in disturbed areas throughout Louisiana and east and central Texas.

Habitat

Forest clearings and along streams and lakes in rich, moist soil, thickets, woods, and moist open places.