Distribution: Occurring east of the Cascades crest in Washington, where known only from Yakima County; also reported for Nebraska and California.
Habitat: Slow-moving streams and ditches.
Flowers: June-August
Origin: Introduced from Europe
Growth Duration: Perennial
Conservation Status: Not of concern
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PNW Herbaria: Specimen records of Veronica ×lackschewitzii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Veronica ×lackschewitzii checklist entry
OregonFlora: Veronica ×lackschewitzii information
E-Flora BC: Veronica ×lackschewitzii atlas page
CalPhotos: Veronica ×lackschewitzii photos