Willowleaf Lettuce

Lactuca saligna

Its leaves often align north-south to avoid the intense midday sun, earning wild lettuces the nickname 'compass plants'.

Scientific name
Lactuca saligna
Taxonomy
Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae › Lactuca
IUCN Red List status
Least Concern
Population trend
stable
Biome
grassland
Habitat
Dry open fields, roadsides, coastal shingle, and disturbed ground.
Diet
Autotrophic (photosynthesis, drawing water and minerals from soil)
Range
Europe, North Africa, Western Asia, North America, Australia
Size
30 to 100 cm tall
Lifespan
1-2 years (annual or biennial)
Active
diurnal
Threats
Habitat loss due to intensive agriculture, urbanization, and over-clearing of ruderal sites.
Safe to approach?
Harmless. This plant is safe to observe and touch. It exudes a bitter, milky white latex when damaged, which can cause mild skin irritation in sensitive individuals; wash skin with soap and water if contact occurs. Do not ingest.

Lactuca saligna is a species of wild lettuce known by the common name willowleaf lettuce , and least lettuce . It is native to Eurasia but it grows in many other places as an introduced species, including much of North America.

Photo: zebedeugalinha, CC-BY, via iNaturalist

Plain-text version: /species/6b70b58d-8627-4fb2-820f-d19c479cb4a0.md