Not so Heavenly

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Contact: Colleen Kenny, Maryland DNR – Forest Service | Nandina domestica foliage and fruit. Photo: Leslie J. Mehrhoff, University of Connecticut, ANNAPOLIS, MD (February 1, 2018) – As you walk through the woods this February, most plants will appear dormant, but heavenly bamboo (Nandina domestica) will be on full display. While often used as […]

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Red Alert: Spotted lanternfly

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Contact: Colleen Kenny, Maryland DNR – Forest Service | ANNAPOLIS, MD (January 1, 2018) – Spotted lanternfly (Lycorma delicatula) is an invasive plant-hopping insect that attacks and feeds on a wide variety of fruit and tree species. Spotted lanternfly has been spreading throughout southeastern Pennsylvania, and because it was recently found for the first […]

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Good for what “Ails” you? A gift from Heaven?

Agrilus smaragdifrons. Photo by Antonio Liberta, 2014; used with permission.

Contact: Jil Swearingen, Invasive Species Consultant, Cheverly, Maryland | ANNAPOLIS, MD (December 1, 2017) – Tree of heaven (Ailanthus altissima) is a highly invasive plant species native to China and East Asia, that impacts natural areas, agricultural areas, and urban areas. It was first introduced into the U.S. around 1784 by William Hamilton at his […]

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Misgivings over Miscanthus

The distinctive inflorescence of Chinese silver grass. Photo by James H. Miller, USDA Forest Service,

Contact:  Michael Ellis, M-NCPPC | | Written by Kerrie Kyde. ANNAPOLIS, MD (November 1, 2017) – Tall silver and white and even purple plumes of grass nodding from old fields and road edges may catch your eye as they are tossed by autumn winds. Graceful and attractive in gardens, some ornamental grasses are rapidly becoming natural […]

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Where Have all the “Flowers” Gone?

Before — Exit Ramp from I-495 to MD185 (SHA Photo)

Contact: Shelley Brunelle, Maryland SHA | ANNAPOLIS, MD (October 01, 2017) – When did you last travel along congested I-495, I-95 between Washington DC and Baltimore, or on US 50 toward Annapolis, and notice something missing? Missing are certainly not angry red taillights or flashing blue lights or even cautious amber work lights. Missing is […]

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A Wavyleaf Wannabe

Leaves of Arthraxon fully encircle the stem, distiguishing the species from many other invasive grasses of Maryland. Photo by K. L. Kyde.

Contact Marc Imlay: | Written by Marc Imlay and Kerrie Kyde. ANNAPOLIS, MD (September 01, 2017) – In the last days of summer, walking in the lawn in your bare feet, you may encounter small carpetgrass, Arthraxon hispidus. Also known as hairy joint grass, jointhead, and occasionally referred to as small carpgrass, this Asian annual has […]

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Maryland Oaks Would Rather “See No Weevil”

AsiaticOakWeevil Photo courtesy of Chris Joll © 2017

Contact: Cathy Stragar, MDA | Photo courtesy of Chris Joll © 2017 ANNAPOLIS, MD (August 01, 2017) – A minor player on the invasive team’s bench of heavy hitters, the Asiatic oak weevil is still an invader to watch, especially for forest managers and invasion ecologists. Indigenous to Japan, the Asiatic oak weevil was first […]

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Not a Professional Scientist? You Can Contribute Regardless!


Contact: Kerrie Kyde and Jil Swearingen ANNAPOLIS, MD (July 04, 2017) – Even if you don’t have a degree in science, you can help support scientific research through a number of “citizen science” efforts. For invasive species research in Maryland, one of the best ways to help is through data collection. Collecting data is […]

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No Pot of Gold at the End of THIS Rainbow!

Iris pseudacorus

Contact: Dawn Miller | ANNAPOLIS, MD (June 04, 2017) – Although it is an attractive herbaceous perennial named after Iris, the Greek goddess of the rainbow, yellow flag iris is a wolf in sheep’s clothing.  Because of its invasive tendencies and negative impacts in natural and agricultural systems, Iris pseudacorus, commonly known as yellow flag iris, […]

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An Incisive Invader

Corydalis incisa

Contact: Damien Ossi | ANNAPOLIS, MD (May 01, 2017) – Incised fumewort (Corydalis incisa), also known as purple keman, is a biennial, shade-tolerant forb in the poppy family, related to bleeding-hearts and to the showy garden perennial spring fumewort. It is native to eastern Asia. Incised fumewort appears to be uncommon in the horticultural trade, […]

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