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What is an invasive plant species?<\/strong><\/p>\n Invasive plant species are plants, either aquatic or terrestrial, that are:<\/p>\n Through aggressive or novel reproduction, environmental endurance, and\/or lack of natural predators, these species can outcompete native plants for resources. They do this by:<\/p>\n Weeds vs. Invasives: What\u2019s the Difference?<\/strong><\/p>\n \u201cWeeds\u201d are essentially plants that are \u2018out of place\u2019 according to human standards. These can be both native and non-native plants and may not necessarily be bad for the environment. Weeds are more of a nuisance to the homeowner, gardener, farmer, or land manager rather than a serious threat. It is human and situational bias that determines what plant is considered \u201cweedy\u201d and where it \u201cbelongs\u201d. Conversely, \u201cinvasive\u201d plants fit the definition above where they are non-native and negatively impact ecosystems, and many of these can be \u201cweedy\u201d as well (I.e., growing where they do not belong).<\/p>\n Common and Prevalent Invasive Plant Species in NJ<\/strong><\/p>\n Thousands of non-native plants have been introduced to our state, both intentionally (e.g., planting) and by accident (e.g., escaped cultivation, attached to shipping material, seeds\/propagules mixed in with other species). However, not all these plants have become invasive or cause harm.<\/p>\n Many non-native plants are well established in New Jersey, some of which are now common and well established (Nonindigenous Plant Species-NJ<\/a> <\/i>). A few of these (at least 50) are considered \u201cwidespread – invasive\u201d and have altered much of the state\u2019s natural landscapes. A greater number are considered \u201cemerging\u201d (few populations but growing) and others have been placed on the \u201cwatchlist\u201d (not yet in NJ but found in adjacent states). Range shifts are also occurring for many species due to climate change, pushing southern species northward.<\/p>\n New Jersey does not have an \u201cofficial\u201d list of invasive plant species, nor does it <\/span>have <\/span>legislation mandating the creation of such a list. However, guidance <\/span>is available <\/span>on species\u00a0<\/span>that can<\/span>\u00a0be harmful if planted <\/span>for landscaping, restoration, or other purposes (See<\/span> <\/span>DEP Policy Directive 2004-02;<\/span><\/span><\/a>\u00a0<\/span>plants<\/span>\u00a0<\/span><\/span>Appendix | PD 2004-02<\/span><\/span><\/a>).\u00a0<\/span><\/span>Current information on invasive species is collected and maintained by The New Jersey Invasive Species Strike Team (FoHVOS – NJISST<\/a>); list is available here: NJISST 2023 – IS Plant List<\/a>. <\/i><\/p>\n Some of the most familiar and widespread invasive plants <\/strong>are listed below. Although not an exhaustive list, these species represent those most commonly encountered and with known impacts.[\/vc_column_text][vc_separator color=”sky” border_width=”5″][vc_column_text]<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=”yes”][vc_column width=”1\/3″][vc_column_text css=”.vc_custom_1706901180617{padding-bottom: -50px !important;}”]<\/p>\n [\/vc_column_text][vc_single_image image=”471″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”381″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”385″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”387″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”389″ img_size=”full” alignment=”center”][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”378″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”382″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”386″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”473″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”398″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”476″ img_size=”full” alignment=”center”][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”380″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”383″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”472″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”474″ img_size=”full” alignment=”center”][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”475″ img_size=”full” alignment=”center”][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator color=”sky” border_width=”5″][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n [\/vc_column_text][vc_column_text]<\/p>\n See the NJ AISMP<\/a> for more information on invasive plants<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=”yes”][vc_column width=”1\/3″][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”390″ img_size=”full” alignment=”center”][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”399″ img_size=”full” add_caption=”yes” alignment=”center”][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n [\/vc_column_text][vc_single_image image=”614″ img_size=”full” add_caption=”yes” alignment=”center”][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":" [vc_row][vc_column][vc_empty_space][breadcrumb-shortcode][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text] Invasive Plants What is an invasive plant species? Invasive plant species are plants, either aquatic or terrestrial, that are: Non-native to the ecosystem under consideration (I.e., New Jersey), and Whose introduction causes or is likely to cause economic or environmental harm or harm to human health (see 2009 NJSMPIS). Through aggressive or novel reproduction, […]<\/p>\n","protected":false},"author":147,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"fullwidth.php","meta":{"footnotes":""},"class_list":["post-182","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/pages\/182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/users\/147"}],"replies":[{"embeddable":true,"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/comments?post=182"}],"version-history":[{"count":0,"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/pages\/182\/revisions"}],"wp:attachment":[{"href":"https:\/\/deptest.nj.gov\/invasive-species\/wp-json\/wp\/v2\/media?parent=182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
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Terrestrial Invasive Species<\/h2>\n
Japanese Honeysuckle<\/a>
\nLonicera japonica<\/em><\/h4>\nMultiflora Rose<\/a>
\nRosa multiflora<\/em><\/h4>\nJapanese Knotweed<\/a>
\nReynoutria japonica<\/em><\/h4>\nWinged Euonymus (Burning Bush)<\/a>
\nEuonymus alatus<\/em><\/h4>\nLesser Celandine<\/a>
\nRanunculus ficaria<\/em><\/h4>\nJapanese Barberry<\/a>
\nBerberis thunbergia<\/em><\/h4>\nGarlic Mustard<\/a>
\nAlliaria petiolata<\/em><\/h4>\nCommon Reed<\/a>
\nPhragmites australis<\/em><\/h4>\nJapanese Stiltgrass<\/a>
\nMicrostegium vimineum<\/em><\/h4>\nCommon Mugwort<\/a>
\nArtemisia vulgaris<\/em><\/h4>\nCallery Pear (Flowers)<\/a>
\nPyrus calleryana<\/em><\/h4>\nTree of Heaven<\/a>
\nAilanthus altissima<\/em><\/h4>\nAutumn Olive<\/a>
\nElaeagnus umbellata<\/em><\/h4>\nOriental Bittersweet<\/a>
\nCelastrus orbiculatus<\/em><\/h4>\nEnglish Ivy<\/a>
\nHedera helix<\/em><\/h4>\nCallery Pear (Tree)<\/a>
\nPyrus calleryana<\/em><\/h4>\nAquatic Invasive Species<\/h2>\n
Water Chestnut<\/a>
\nTrapa natans<\/em><\/h4>\nHydrilla<\/a>
\nHydrilla verticillata<\/em><\/h4>\nCurly-leaf Pondweed<\/a>
\nPotamogeton crispus<\/em><\/h4>\n