Updated: March 16, 2023
By Andrew Kling

Since its debut as a regular Branching Out feature in 2016, "Invasives in Your Woodland" has profiled a wide variety of invasive plant species that threated the health of Maryland's ecosystems.

Please note that all information concerning these species was current as of date of publication.

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2016

Japanese Stiltgrass

Japanese Stiltgrass (Vol. 24, no. 1 - Spring 2016)

invasive wavyleaf basketgrass

Wavyleaf basketgrass (Vol. 24, no. 2 - Summer, 2016)

Norway maple in fall. Photo by Leslie Mehrhoff, University of Connecticut, bugwood.org

Norway maple (Vol. 24, no. 3 - Fall 2016)

Golden bamboo growing along a roadside.

Golden bamboo (Vol. 24, no. 4 - Winter 2016)

2017

Callery pear trees in bloom. Photo by T Davis Sydnor, Ohio State University

Callery pear (Vol. 25, no. 1 - Spring 2017)

English Ivy leaves close up

English ivy (Vol. 25, no. 2 - Summer 2017)

Amur bush honeysuckle foliage and fruit. Photo by Chris Evans, University of Illinois, bugwood.org

Bush honeysuckles (Vol. 25, no. 3 - Fall, 2017)

Japanese barberry woodland infestation. Photo by Leslie Mehrhoff, University of Connecticut, bugwood.org

Japanese barberry (Vol. 25, no. 4 - Winter, 2017)

2018

Oriental bittersweet foliage. Photo by Richard Gardner, UMES, bugwood.org

Oriental bittersweet (Vol. 26, no. 1 - Spring 2018)

Autumn olive flowers. Photo by Nancy Loewenstein, Auburn University, bugwood.org

Autumn olive (Vol. 26, no. 2 - Summer 2018)

Multiflora Rose

Multiflora rose (Vol. 26, no. 3 - Fall 2018)

Garlic Mustard. Photo by Ansel Oommen, Bugwood.org

Garlic mustard (Vol. 26, no. 4 - Winter 2018)

2019

Japanese honeysuckle flowers. Photo by Chuck Bargeron, University of Georgia, bugwood.org

Japanese honeysuckle (Vol. 27, no. 1 - Winter 2019)

Kudzu

Kudzu (Vol. 27, no. 2 - Spring 2019)

Japanese knotweed plants and flowers. Photo by Britt Slattery, US Fish & Wildlife Service

Japanese knotweed (Vol. 27, no. 3 - Summer 2019)

Butterflybush infestation. Photo by Leslie J. Mehrhoff-University of Connecticut, Bugwood.org

Butterflybush (Vol. 27, no. 4 - Fall 2019)

2020

Mile-a-minute foliage. Photo by Bruce Ackley, The Ohio State University, Bugwood.org

Mile-a-minute (Vol. 28, no. 1 - Winter 2020)

European buckthorn foliage. Photo by Rob Routledge, Sault College, bugwood.org

European buckthorn (Vol. 28, no. 2 - Spring 2020)

Winged euonymus infestation. Photo by Leslie Mehrhoff, University of Connecticut, bugwood.org

Winged euonymus (Vol. 28, no. 3 - Summer 2020)

Japanese Privet

Japanese privet (Vol. 28, no. 4 - Fall 2020)

2021

Tree-of-heaven seeds. Photo by Richard Gardner, UMES, Bugwood.org

Tree-of-heaven (Vol. 29, no. 1 - Winter, 2021)

Lesser Celandine. Photo by Nancy Gregory, University of Delaware, bugwood.jpg

Lesser celandine (Vol. 29, no. 2 - Spring 2021)

Porcelain-berry foliage and fruit. Photo by Leslie J. Mehrhoff, University of Connecticut, bugwood.org

Porcelain-berry (Vol. 29, no. 3 - Summer 2021)

Johnsongrass

Johnsongrass (Vol. 29, no. 4 - Fall 2021)

2022

Canada thistle flowers. Photo by Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Canada Thistle (Vol. 30, no. 1 - Winter, 2022)

Musk thistle flowers. Photo by Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Musk Thistle (Vol. 30, no. 2 - Spring 2022)

Plumeless thistle blooming in Washington Co., Maryland, 2013. Photo by Jim Stasz, Maryland Biodiversity Project

Plumeless Thistle (Vol. 30, no. 3 - Summer 2022)

Bull thistle bloom in Garrett Co., Maryland. Photo by Jim Brighton, Maryland Biodiversity Project

Bull Thistle (Vol. 30, no. 4 - Fall 2022)

2023

Princess Tree blooming in Howard County. MD. Photo by Joanne Solem. Maryland Biodiversity Project

Princess Tree (Vol. 31, no. 1 - Winter 2023)