Asiatic Tearthumb Persicaria perfoliata (Linnaeus) H. GrossNon-native  -  Invasive    Synonyms: Mile-a-minute Weed, Perfoliate Tearthumb, Polygonum perfoliatum.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Caryophyllales   >   Family Polygonaceae   >   Genus Persicaria   

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Asiatic Tearthumb in Anne Arundel Co., Maryland (9/4/2017). Photo by Wayne Longbottom. (MBP list)

Asiatic Tearthumb in Harford Co., Maryland (12/6/2015). Photo by Bill Hubick. (MBP list)

Asiatic Tearthumb growing in Washington Co., Maryland (9/25/2016). Photo by Mark Etheridge. (MBP list)

Asiatic Tearthumb blooming in Montgomery Co., Maryland (9/7/2014). Photo by Ashley Bradford. (MBP list)

Asiatic Tearthumb in Allegany Co., Maryland (9/29/2014). Photo by Kimberly Booth. (MBP list)

Asiatic Tearthumb in Prince George's Co., Maryland (9/23/2014). Photo by Jesse Christopherson. (MBP list)

Asiatic Tearthumb growing in Harford Co., Maryland (10/30/2016). Photo by Dave Webb. (MBP list)

Ripening fruit of Asiatic Tearthumb in Prince George's Co., Maryland (9/28/2013). Photo by Hugh Vandervoort. (MBP list)

Asiatic Tearthumb growing in Howard Co., Maryland (9/9/2017). Photo by Matthew Beziat. (MBP list)

Asiatic Tearthumb in Anne Arundel Co., Maryland (9/21/2016). Photo by Tyler Bell. (MBP list)

Asiatic Tearthumb forms dense curtains that choke out biodiversity, especially along edges of habitat. Shown here at Turkey Point, Cecil Co., Maryland (9/20/2012). Photo by Bill Hubick. (MBP list)

Asiatic Tearthumb in Howard Co., Maryland (8/12/2017). Photo by Ashley Bradford. (MBP list)

Asiatic Tearthumb in Anne Arundel Co., Maryland (10/17/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Asiatic Tearthumb in Anne Arundel Co., Maryland (10/14/2020). (c) mcnod, some rights reserved (CC BY-NC). Photo by mcnod via iNaturalist. (MBP list)

Asiatic Tearthumb in Anne Arundel Co., Maryland (7/23/2013). Photo by Bill Harms. (MBP list)

Asiatic Tearthumb growing in Carroll Co., Maryland (9/8/2019). Photo by Matthew Beziat. (MBP list)

Asiatic Tearthumb in Howard Co., Maryland (8/12/2017). Photo by Ashley Bradford. (MBP list)

Asiatic Tearthumb growing in Frederick Co., Maryland (6/25/2016). Photo by Dan Small. (MBP list)

Asiatic Tearthumb in Harford Co., Maryland (8/28/2016). Photo by Kirsten Johnson. (MBP list)

Asiatic Tearthumb in Harford Co., Maryland (6/23/2014). Photo by Jim Stasz. (MBP list)

Asiatic Tearthumb (winter aspect) in Anne Arundel Co., Maryland (1/19/2017). Photo by Bill Hubick. (MBP list)

Asiatic Tearthumb in Baltimore Co., Maryland (7/10/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Asiatic Tearthumb in Howard Co., Maryland (7/8/2018). Photo by Matthew Beziat. (MBP list)


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MBP marks as "Invasive" any taxon listed in the Maryland Invasive Species Council (MISC) list of Invasive Species of Concern in Maryland. You can read their criteria and review the lists here: https://mdinvasives.org/species-of-concern/.

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