Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Washington, east to Idaho; native from southern Rocky Mountains east to the Atlantic Coast.
Habitat: Disturbed areas and abandoned homesteads.
Flowers: May-June
Origin: Introduced from central and eastern North America
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Catalpa speciosa in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Catalpa speciosa checklist entry.
OregonFlora: Catalpa speciosa information.
E-Flora BC: Catalpa speciosa atlas page.
CalPhotos: Catalpa speciosa photos.
USDA Plants: Catalpa speciosa information.