European wall lettuce confirmed spreading in Whistler, BC forests
iNaturalist: wikinose
Invasive Species
If you hike or garden near Whistler, this weedy little lettuce relative is quietly moving into shaded forest edges and disturbed soil, and spotting it early helps track how fast non-native plants colonize mountain ecosystems.
Someone out walking in Whistler, British Columbia snapped a photo of a plant called Wall Lettuce and other observers confirmed the ID, making it an official research-grade record. This plant isn't native to North America. It came from Europe, and finding it in a residential area like Spruce Grove Cir shows it's settling into new territory outside its original range.
Key Findings
Observation verified as research-grade on iNaturalist, meaning the ID has community consensus
Location recorded at Spruce Grove Cir, Whistler, British Columbia, Canada
Mycelis muralis (Wall Lettuce) is a non-native species originating from Europe
chevron_right Technical Summary
A naturalist confirmed a research-grade sighting of Wall Lettuce, a European plant now spreading through the woods and roadsides of Whistler, BC, showing how quickly non-native species establish in mountain towns.
Abstract Preview
Original paper
Wall Lettuce (Mycelis muralis) observed in Spruce Grove Cir, Whistler, BC, CA
Research-grade observation of Wall Lettuce in Spruce Grove Cir, Whistler, BC, CA.
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
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Lactuca muralis, the wall lettuce, is a perennial flowering plant in the tribe Cichorieae within the family Asteraceae. It is also referred to as Mycelis muralis.