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Fallopia japonica

Family: polygonaceae
Common name(s): Japanese knotweed
Synonym(s): Polygonum cuspidatum
Hardiness ratings: USDA zone 3~5 - 8~9

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Fallopia japonica

• Asianflora - Plant photos. (2 photos)
• Connecticut Botanical Society - Wildflower profile. (2 photos)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8) (12 photos)
• Floridata - Illustrated informative profile page with notes on culture, usage, and noteworthy features. (zone 3-8) (2 photos)
• Garden.org - Community-assembled plant profile (2 varieties in database) (5 photos)
• Heritage Perennials: Fallopia japonica Milk Boy - Profile with description and horticultural details. (zone 5-9) (1 photo)
• Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (8 photos)
• Plant Delights Nursery: Polygonum cuspidatum 'Crimson Beauty' - Catalog page with photo, horticultural basics, and descriptive blurb. (additional pages for other varieties) (1 photo)
• Rob's Plants: Fallopia japonica 'Variegata' - Plant profile with basic horticultural information and often personal observations. (zone 4-8) (2 photos)
• Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.

Fallopia japonica var. compacta

Common name(s): Japanese knotweed
Hardiness ratings: USDA zone 4~5 - 9

Links

• Denver Botanic Gardens: Fallopia japonica var. compacta 'Variegata' - Description, native range, and cultural requirements. (zone 5) (4 photos)
• Digging Dog Nursery - Catalog page with descriptive information (zone 4)
• Garden.org - Community-assembled plant profile (4 photos)
• Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 5-9) (3 photos)

Fallopia japonica var. japonica

Links

• Garden.org - Community-assembled plant profile (2 varieties in database) (6 photos)