Photos (Terrestrial/Aquatic Plants and Diseases)

Brazilian water weed
Brazilian water weed (Egeria densa). Leslie J. Mehrhoff, University of Connecticut,

The Bugwood.Org images site, started in 1994 by the University of Georgia’s Center for Invasive Species and Ecosystem Health, has become a tremendous resource for those working in the fields of Invasive Species Management, Integrated Pest Management, and related education and outreach efforts. Currently the site hosts over 144,716 natural resource images in an easy to search and use format. We support their efforts and encourage others with images of Maine invasives to join the effort and share your images, which will be licensed for personal and educational use. Visit their website to sign up or learn more details.

The Invasive.Org site has over 1700 invasive species images in their collection and are organized in the following categories below. Listed below are links to selected species as included in our Identification Resources pages. These include: insects, crustaceans, mollusks, and fish images

For additional photos, visit Insects, Crusteaceans, Mollusks, and Fish or for more detailed info on a particular species see the Identification Resources pages.

Invasive Plants (Terrestrial)

Common Name Species Name
Asiatic Bittersweet Celastrus orbiculatus
Autumn Olive Elaeagnus umbellata
Burning Bush Euonymus alatus
Black Swallowwort Cynanchum louiseae
Common Buckthorn Frangula alnus
Common Reed / Phragmites Phragmites australis
Garlic Mustard Alliaria petiolata
Giant Hogweed Heracleum mantegazzianum
Glossy Buckthorn Rhamnus cathartica
Honeysuckle (shrubby) / Tartarian / Bell’s / Morrow Lonicera species
Japanese barberry Berberis thunbergii
Japanese Honeysuckle Lonicera japonica
Japanese Knotweed / Mexican Bamboo Fallopia japonica
Japanese Stilt Grass / Chinese Packing Grass Microstegium vimineum
Lesser Celandine Ranunculus ficaria
Mile-a-Minute Weed / Devils’ Tail / Tearthumb Polygonum perfoliatum
Multiflora/Rambler Rose Rosa multiflora
Porcelainberry Ampelopsis brevipedunculata
Purple Loosestrife Lythrum salicaria
Russian Olive Elaeagnus angustifolia

Plants (Aquatic)

Common Name Species Name
Brazilian Waterweed Egeria densa
Curly-leaf Pondweed Potamogeton crispus
Eurasian Milfoil Myriophyllum spicatum
European Naiad Najas minor
Fanwort, Cabomba Cabomba caroliniana
Hydrilla Hydrilla verticillata
Variable-leaf Milfoil Myriophyllum heterophyllum
Water Chesnut Trapa natans

Invasive Diseases

Common Name Species Name
Sudden Oak Death Phytophthora ramorum

When images are not currently available in Bugwood, links to the species record from the Encyclopedia of Life project are substituted.