Wavy-leaved Basketgrass Oplismenus undulatifolius (Arduino) BeauvoisNon-native  -  Invasive    Synonyms: Opismenus hirtellus var. undulatifolius, Wavyleaf Basketgrass.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Poales   >   Family Poaceae   >   Genus Oplismenus   

Status:

Wavy-leaved Basketgrass is an invasive species from Asia that is fast becoming established in Maryland. Its initial discovery in Maryland was in 1997, by botanist Edward Uebel, in Patapsco Valley State Park.

Description:

This perennial grass is easy to identify because it has distinct ripples across the width of the leaf blade. The plant begins to flower in July and fruits appear in late summer. The fruits are easily spread because they are sticky and cling to clothing, dogs, and large wildlife.

Where to find:

Since its discovery along the Patapsco in 1997, Wavy-leaved Basketgrass has spread to many of the bottomlands of the Maryland Piedmont. As of 2020, it was well established throughout the Piedmont and along the Fall Line, and it was springing up in the Ridge and Valley Province and had been spotted at a few sites on the Coastal Plain.

There are 84 records in the project database.

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Wavyleaf Basketgrass in Montgomery Co., Maryland. Learn more about this aggressive invasive from this MD DNR poster on Wavyleaf Basketgrass. Photo by Kerrie Kyde. (MBP list)

Wavy-leaved Basketgrass in Carroll Co., Maryland (7/8/2018). Photo by Bill Hubick. (MBP list)

Wavy-leaved Basketgrass in McKeldin Area, Patapsco Valley SP, Carroll Co., Maryland (6/16/2017). Photo by Bill Harms. (MBP list)

Wavy-leaved Basketgrass in Harford Co., Maryland (9/16/2018). Photo by Bill Hubick. (MBP list)

Wavy-leaved Basketgrass in Howard Co., Maryland (9/6/2017). Photo by Bill Harms. (MBP list)

Wavy-leaved Basketgrass at the North Tract, Patuxent Research Refuge, Anne Arundel Co., Maryland (6/30/2017). Photo by Bill Harms. (MBP list)

A patch of Wavy-leaved Basketgrass in the Avalon area of Patapsco Valley SP, Howard Co., Maryland (6/12/2017). Photo by Bill Hubick. (MBP list)

Wavy-leaved Basketgrass found at Bacon Ridge Natural Area in Anne Arundel Co., Maryland (11/9/2013). Photo by Kerry Wixted. (MBP list)

Wavy-leaved Basketgrass in the Glen Artney area of Patapsco Valley State Park in Baltimore Co., Maryland (8/21/2017). Photo by Bill Hubick. (MBP list)

Wavy-leaved Basketgrass (flowers) in Howard Co., Maryland (8/1/2015). Photo by Joanne Solem. (MBP list)

Wavy-leaved Basketgrass in Howard Co., Maryland (12/26/2018). Photo by Matthew Beziat. (MBP list)

Wavy-leaved Basketgrass in Baltimore Co., Maryland (10/27/2019). (c) Charlie Davis, some rights reserved (CC BY-NC). Photo by Charlie Davis. (MBP list)

Wavy-leaved Basketgrass in Prince George's Co., Maryland (9/26/2020). (c) Maggie Park, some rights reserved (CC BY-NC). Photo by Maggie via iNaturalist. (MBP list)

Wavy-leaved Basketgrass in bloom in Harford Co., Maryland (9/16/2017). Photo by Josh Emm. (MBP list)

Wavy-leaved Basketgrass in Baltimore Co., Maryland (7/2/2020). (c) Dwight Johnson, all rights reserved. Photo by Dwight Johnson. (MBP list)


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