• Poplar Grove National Cemetery Luminary Event (photo courtesy of Joanne Williams)

    Petersburg

    National Battlefield Virginia

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  • Attn. GPS Users - Advice for Seeking Directions to the Park

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  • No Parking Available in the Eastern Front Unit August 2

    Free shuttle service will transport all visitors to and from the Eastern Front Unit on August 2 during 150th Anniv. of the Battle of the Crater events. Shuttles will depart from the Farmer's Market located at 9 Old St. in Old Towne Petersburg.

  • Eastern Front Unit Trails Closed to Horse Traffic on August 2

    Those who would like to ride horses at the park on Aug. 2 are encouraged to use the trails at Five Forks in Dinwiddie County as other trails will be closed to horses that day while the park commemorates the 150th Anniv. of the Battle of the Crater.

Nonnative Species

Japanese Stiltgrass along Park Trail

Japanese Stiltgrass along Park Trail

(NPS Photo)

What qualifies as a nonnative species? Any species that is not indigenous to a particular area is considered nonnative. Nonnative species that compete with native species are considered invasive. A more specific definition, according to Executive Order 13112, of an invasive species is:

1) non-native (or alien) to the ecosystem under consideration and

2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.

Nonnative species usually come into the United States through some sort of human introduction. In the past, and even still today, nonnative plants and animals have been intentionally introduced into America for different purposes. In many cases, these nonnatives turn out to be invasive and compete with the native species in an area. However, not all introductions are intentional. Goods that are imported to the United States are often shipped on wooden crates. These wooden crates can contain insects and plant diseases that are harmful to native species. Other exotics make their way into the United States in less perceptible ways. Many were brought over, in the past, for use in landscaping. Mimosa is one of the prime examples of a 'landscape exotic' that has wreaked massive damage to local ecosystems across the country.

There are numerous websites and other information sources available that can be used to learn more about nonnative species.


Petersburg National Battlefield, like most members of the National Park Service nationwide, has a major nonnative species problem. For the most part, though, this problem rests in the vegetation realm. Petersburg National Battlefield has identified 24 invasive exotic plant species within its boundaries. These include: Tree of Heaven, Johnson Grass, Mullein, Chinese Lespedeza, Chinese Wisteria, White Poplar, Mimosa, English Ivy, Privet, Vinca, Multiflora Rose, and Japanese Stilt Grass.

There are ongoing projects to identify, control, and ultimately eradicate these highly invasive nonnatives. However, some of the species are very difficult to kill, and all of them are very competitive and fast-growing in the park's habitat. It will be a continual challenge to rid the park of these destructive species.

 

Did You Know?

The Crater in Petersburg

The 4th Division of the Union 9th Corps lost 209 men killed and wounded at the Battle of the Crater. Poplar Grove National Cemetery is the resting spot for 331 United States Colored Troops. Most of these men are unidentified burials from the Crater battlefield. (Petersburg Nat'l Battlefield)