rock harlequin

Capnoides sempervirens

Its seeds have a chemical trigger that requires the intense heat of a wildfire to break dormancy, allowing it to rapidly colonize freshly burned landscapes.

Scientific name
Capnoides sempervirens
Taxonomy
Plantae › Tracheophyta › Magnoliopsida › Ranunculales › Papaveraceae › Capnoides
IUCN Red List status
Least Concern
Population trend
stable
Biome
forest
Habitat
Rocky ledges, cliffs, gravelly slopes, and recently burned boreal or mixed-wood forest clearings.
Diet
Autotrophic (produces energy via photosynthesis using sunlight, carbon dioxide, and soil minerals).
Range
Canada, Northeastern United States, Great Lakes Region, Appalachian Mountains
Size
30 - 80 cm (12 - 31 inches) in height
Lifespan
2 years (biennial)
Active
diurnal
Threats
Fire suppression, which prevents canopy opening and seed germination, and localized habitat loss from trail construction or quarrying.
Safe to approach?
Safe to observe and photograph. The plant is harmless to touch, but all parts are toxic if ingested due to alkaloids. Do not consume. Keep pets away. If ingested, seek medical advice.

Capnoides sempervirens , the harlequin corydalis , rock harlequin , pale corydalis or pink corydalis , is an annual or biennial plant native to rocky woodland and burned or disturbed places in northern North America. Capnoides sempervirens is the only species in the genus Capnoides .

Photo: aarongunnar, CC-BY, via iNaturalist

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