Common Blue-sow-thistle vs Downy Lettuce

Lactuca macrophylla compared with Lactuca hirsuta

Taxonomic Classification

Rank	Common Blue-sow-thistle	Downy Lettuce
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Asterales (Daisies & Sunflowers)	Asterales (Daisies & Sunflowers)
Family same	Asteraceae (Daisy Family)	Asteraceae (Daisy Family)
Genus same	Lactuca	Lactuca
Species	Lactuca macrophylla	Lactuca hirsuta

Evolutionary Relationship

Common Blue-sow-thistle and Downy Lettuce share a common ancestor at the Genus level: Lactuca.

Conservation Status

Common Blue-sow-thistle

NE — Not Evaluated

Downy Lettuce

NE — Not Evaluated

Physical Characteristics

Attribute	Common Blue-sow-thistle	Downy Lettuce
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Blue-sow-thistle

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (7 countries).

Downy Lettuce

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada and United States.

Common Blue-sow-thistle

The common blue sow-thistle (<em>Lactuca macrophylla</em>) is a plant species native to Europe, with documented occurrences in the Czech Republic, Denmark, France, Iceland, and Norway. This species typically inhabits diverse terrestrial environments, adapting to a range of ecological conditions across its European range. As a member of the family Asteraceae, it often grows in disturbed habitats, roadsides, and woodland edges throughout its native range. The common blue sow-thistle has not been formally assessed on the IUCN Red List, so its global conservation status remains unevaluated at this time. This species typically forms part of the understory vegetation in temperate ecosystems. Its broad distribution across northern and central Europe suggests a degree of ecological resilience and adaptability to varying climatic conditions. Biological traits of this species remain poorly documented in the scientific literature.