ML070720652

Pennsylvania Dept. of Conservation and Natural Resources, Serious Threats

ML070720652
Person / Time
Site:	Susquehanna
Issue date:	03/07/2007
From:	State of PA, Dept of Conservation and Natural Resources
To:	Office of Nuclear Reactor Regulation
ALICIA MULLINS 301-415-1224
References
Download: ML070720652 (3)

Text

Pa. Dept. of Conservation and Natural Resources PA STATE AGENCIES ONLINE SERVICES Serious Threats The species below are the most Forestry serious threats or worst offenders to our native ecosystems. Many have Recreation Forest Health been designed as "Noxious Weeds" Rural & Community by the Pennsylvania Department of Forestry Agriculture and are also a major Private Forest concern to our agricultural Landowners community. Pennsylvania Regions Forest Fire Protection Six Pennsylvania Regions were used to show state distribution:

Education &

SE = Southeast SC = Southcentral SW = Southwest Information NE = Northeast NC = Northcentral NW = Northwest State Forest Freq. = Frequent Occ. = Occasional Rare Management Publications Scientific Name Common Name Plant Form Pennsylvania Distribution Contacts Alliaria petiolata Garlic mustard Flower Freq: SE, SC, SW, NW; Occ: NE Notes: Invasive in many states; spreading aggressively in woodlands by seed Carduus nutans Musk thistle Flower Freq: SE, SC, SW, NE, NC, NW Notes: PA noxious Weed Cirsium arvense Canada thistle Flower Freq: SE, SC, SW, NE, NC, NW Notes: PA noxious Weed Cirsium vulgare Bull thistle Flower Freq: SE, SC, SW, NE, NC, NW Notes: PA noxious Weed Datura stramonium Jimsonweed Flower Freq: SE, SC, SW; Occ: NE Notes: Sometimes cultivated; spreads by seed, PA Noxious Weed Galega officinalis Goatsrue Flower Rare: SE http://www.dcnr.state.pa.us/forestry/wildplant/serious.aspx (1 of 3)3/7/2007 11:32:47 AM

Pa. Dept. of Conservation and Natural Resources Notes: PA and Federal Noxious Weed, on location in SE PA Heracleum mantegazzianum Giant hogweed Flower Rare: NW Notes: PA and Federal Noxious Weed, sap can cause burning blisters Lythrum salicaria, L. virgatum Purple loosestife Flower Freq: SE; Occ: SC, SW, NE, NC, NW Notes: Garden escape which has become invasive in many states; PA noxious Weed Microstegium vimineum Japanese stilt grass Grass Freq: SE; Occ: SC Notes: Annual grass; invasive in many states; spreading through woodlands by seed Phragmites australis Common reed Grass Freq: SE; Occ: SC, SW, NE, NW Notes: Native and introduced strains; wetland grass which can form huge colonies Polygonum (Falopia) cuspidatum Japanese knotweed Flower Freq: SE; Occ: SC, SW, NE, NW; Rare: NC Notes: Invasive in many states; difficult to control; spreads by roots and seeds Sorghum bicolor ssp. drummondii Shattercane Grass Freq: SE; Occ: SC, NC Notes: Grass; PA noxious Weed Sorghum halepense Johnson grass Grass Freq: SE; Occ: SC, SW, NE, NW Notes: Grass; PA noxious Weed; spreads by roots and seeds Elaeagnus umbellata Autumn olive Shrub Freq: SE, SC; Occ: SW; Rare: NE, NW Notes: Escaped from plantings and invasive in many states; rapidly spread by birds Lonicera maackii Amur honeysuckle Shrub Occ: SE, SC, NW Notes: Escaped from plantings; seeds spread by birds Lonicera morrowii Morrow's honeysuckle Shrub Freq: SE, SC, SW; Occ: NE, NC, NW Notes: Escaped from plantings and invasive in many states; seeds spread by birds Lonicera standishii Standish honeysuckle Shrub Occ: SE Notes: Escaped from plantings; seeds spread by birds Lonicera tartarica Tartarian honeysuckle Shrub Freq: SE, SC, SW; Occ: NE, NW Notes: Escaped from plantings; seeds spread by birds Rosa multiflora Multiflora rose Shrub Freq: SE, SC, SW; Occ: NE, NC, NW Notes: Invasive in many states; seeds spread by birds; PA noxious Weed Acer platanoides Norway maple Tree Freq: SE; Occ: SE, SW Notes: Commonly planted and escaped; invasive in many states; wind spreads prolific seeds Ailanthus altissima Tree-of-heaven Tree Freq: SE, SC; Occ: SW Notes: Invasive in many states; wind spreads prolific seeds Celastrus orbiculatus Oriental bittersweet Vine Freq: SE, SC, SW; Rare: NE, NW Notes: Escaped from cultivation and invasive in many states; spreading rapidly (by birds)

Lonicera japonica Japanese honeysuckle Vine Freq: SE, SC; Occ: SW, NE Notes: Invasive in many states Polygonum perfoliatum Mile-a-minute vine Vine Freq: SE; Rare: SW Notes: Range expanding; PA Noxious Weed http://www.dcnr.state.pa.us/forestry/wildplant/serious.aspx (2 of 3)3/7/2007 11:32:47 AM

Pa. Dept. of Conservation and Natural Resources Pueraria lobata Kudzu Vine Freq: SE; Rare: SW Notes: Invasive in many states; PA Noxious Weed Return to Invasive Plants Home Home Â* Contact Â* FAQ http://www.dcnr.state.pa.us/forestry/wildplant/serious.aspx (3 of 3)3/7/2007 11:32:47 AM