Persicaria extremiorientalis (Vorosch.) Tzvelev.
- Botanical Name
- Persicaria extremiorientalis (Vorosch.) Tzvelev.
- Common Name
- East Asian Smartweed
- Flora of Virginia Name/Status
- in Taxa Not Treated: Waifs
- Reported as established in North America in J. Torr. Bot. Soc. 137(4):333-338 (2010) and first discovered in Virginia by Charlie Davis based on his 2009 collection from Mather Gorge, Fairfax County; more recent specimens from Albemarle, Augusta, Chesterfield, Fluvanna, Frederick, Greene, Hanover, Louisa, and Nelson counties indicate a very rapidly spreading introduction. Additional occurrences will certainly be forthcoming. It is a tall plant (2 m or more in height) resembling P. lapathifolia and P. maculosa, with (in our area) usually sparsely strigose stems, stipitate-glandular peduncles, and purplish, nodding inflorescences.
- Disturbed alluvium, weedy roadsides, waste places, and mulch beds. There are few records currently, but this weedy species is likely to spread quickly.
- Native Status
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