Narrowleaf Bittercress Cardamine impatiens LinnaeusNon-native  -  Invasive    Synonyms: Narrow-leaved Bittercress.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Brassicales   >   Family Brassicaceae   >   Genus Cardamine   

Status:

Narrowleaf Bittercress is native to Europe. This non-native invasive mustard was first discovered in New Hampshire in 1916, and has since spread throughout the Northeast and west to eastern Minnesota. The first records from Maryland of Narrowleaf Bittercress appear around 2010 from along the Susquehanna River. Since then, Narrowleaf Bittercress has made its way down the Baltimore - Washington Corridor.

Narrowleaf Bittercress grows in moist soils of rich woods. Ditch edges, seeps, and stream banks are favorable habitats.

Description:

Narrowleaf Bittercress can be differentiated from other Cardamine species by having stem leaves with seven or more leaflets. The stem leaves have sagitate-auriculate bases, and acuminate tips. Most other Cardamine species with seven or more leaflets on the stem leaves have leaflets that are mostly obtuse.

There are 46 records in the project database.

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Narrowleaf Bittercress in Baltimore Co., Maryland (5/10/2017). Photo by Emily Stanley. (MBP list)

Narrowleaf Bittercress in Baltimore Co., Maryland (5/20/2016). Photo by Kirsten Johnson. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (5/10/2019). Photo by Georgia McDonald. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (5/15/2014). Photo by Kerry Wixted. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (5/15/2014). Photo by Kerry Wixted. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (7/1/2017). Photo by Bill Hubick. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (6/24/2014). Photo by Jim Stasz. (MBP list)

Narrowleaf Bittercress in Montgomery Co., Maryland (5/17/2020). (c) Katya Tregub, all rights reserved. Photo by Katya Tregub-Emrick. (MBP list)

Narrowleaf Bittercress in Cecil Co., Maryland (4/29/2017). Photo by Jim Brighton. (MBP list)

Narrowleaf Bittercress in Baltimore Co., Maryland (5/17/2018). Photo by Tom Feild. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (4/29/2017). Photo by Jim Brighton. (MBP list)

Narrowleaf Bittercress in Baltimore Co., Maryland (5/4/2017). Photo by Mac Plant. (MBP list)

Narrowleaf Bittercress in Baltimore Co., Maryland (6/12/2019). (c) Dwight Johnson, all rights reserved. Photo by Dwight Johnson. (MBP list)

Narrowleaf Bittercress in Harford Co., Maryland (6/2/2020). (c) Dwight Johnson, all rights reserved. Photo by Dwight Johnson. (MBP list)

Narrowleaf Bittercress in Baltimore City, Maryland (7/8/2017). Photo by Kirsten Johnson. (MBP list)


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