Lactuca ludoviciana [Asteraceae]

Click on the images below to see larger versions.

Scientific Name Lactuca ludoviciana USDA PLANTS Symbol LALU
Common Name Wild Lettuce, Louisiana Lettuce ITIS Taxonomic Serial No. 36602
Family Asteraceae (Sunflower) SEINet
Reference
Click Here
Description Habitat: Dryer, usually calareous soils in sunny, open areas; disturbed sites.
Plant: Erect biennial, central, smooth stem 2 to 5 feet tall in second year; unbranched except at flower clusters.
Leaves: Dark green, shiney blades variable in size and shape; basal rosette in first year, each blade up to 12 inches long and 8 inches wide, deeply lobed and coarsely toothed with sharp pointed teeth; smaller and less lobed, stalkless stem leaves in lower half to 3/4 portion of plant, becoming about 4 inches long, 1-1/2 inches wide, and unlobed but may have two lobes near leaf base.
Inflorescence: Open, branching cluster of stalked flowers at the top arising from upper leaf axils; flowers are 3/4 to 1 inch across with 20 to 50 pinkish purple to bluish rays, sometimes yellow; no disk flowers; involucre tube 1/2 to 3/4-inch long, smooth with overlapping bracts, green to purplish.
Bloom Period: May to June.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, Minnesota Wildflowers and SEINet.
Note: Some disagreement on the flower color which is usually yellow, according to some references; plants photographed here have pale lavender florets.
BONAP Distribution Map

Texas Status:
Native


© Tom Lebsack 2019