Persicaria
knotweed, smartweed, tearthumb
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Persicaria
Publication: Gard. Dict. Abr., ed. 4. vol. 3. 1754.
Publication: Gard. Dict. Abr., ed. 4. vol. 3. 1754.
Synonyms & Misapplications:
(none provided)
Species in Persicaria:
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Persicaria amphibia – water smartweed
Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast. - Persicaria arifolia – halberd-leaf tearthumb
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Persicaria hydropiper – smartweed, mild water-pepper Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
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Persicaria hydropiperoides – water pepper, swamp smartweed Occurring chiefly west of the Cascades crest in Washington; British Columbia to Mexico and South America, east across North America to the Atlantic coast.
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Persicaria lapathifolia – dock-leaf smartweed, pale smartweed, willow weed Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
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Persicaria maculosa – heartweed, lady's-thumb, spotted lady's-thumb, redshank Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
- Persicaria orientalis – Kiss-me-over-the-garden-gate, princess-feather
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Persicaria punctata – dotted knotweed, dotted smartweed, water smartweed Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
- Persicaria setacea – bog smartweed
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Persicaria wallichii – garden knotweed Occurring west of the Cascades crest in Washington; British Columbia to California; also in eastern North America.
- var. wallichii – garden knotweed, Himalayan knotweed Occurring west of the Cascades crest in Washington; British Columbia to California; also in eastern North America.
Additional Resources:
PNW Herbaria: Specimen records of Persicaria in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Persicaria checklist entry
OregonFlora: Persicaria information
E-Flora BC: Persicaria atlas page
CalPhotos: Persicaria photos
260 photographs:
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