SRS-FIA Invasive SRS-FIA Invasive Plant Identification Plant Identification 2012-20132012-2013

Part 7Part 7

This presentation contains the original invasive tree species added to the list preceding SRS-FIA manual version 6.0.

Princess Tree - Paulownia tomentosa PATO2

Opposite, entire, heart shaped leaves, fuzzy hairs above and below

Flowers April to May. Before leaves in spring.

Pale – violet and fragrant.

Ecology: Forms colonies Forest margins

Princess Tree - Paulownia tomentosa PATO2

Leaves can get >2 feet long

Paulownia tomentosa PATO2

Look-a-like

Catalpa

Princess Tree - Paulownia tomentosa

PATO2

• Autumn olive leaves: deciduous, elliptic wavy margins pubescent, scale-less above dense silver scales below

• Stems: spur twigs common (thorny) grey-green, smooth, glossy

• Ecology: individuals and stands occur in openings and in shade

Elaeagnus Group (Olive Group) ELAEA

• Russian olive leaves: deciduous, long lanceolate sparse silver scales above dense silver scales below

• Stems: thorny silver scales/smooth green-red

• Ecology: forest margins forest openings

Elaeagnus Group (Olive Group)ELAEA

Elaeagnus umbellataAutumn olive

Elaeagnus angustifoliaRussian olive

Albizia julibrissin

ALJUCommon names: silktree,

mimosa, silky acacia, Japanese mimosa

Deciduous, leguminous tree 10 to 50 feet tall.

Smooth light-brown bark, feathery leaves, and showy pink blossoms that continually yield dangling flat pods during summer.

Some pods persistent during winter. Occurs on dry-to-wet sites and spreads along stream banks, preferring open conditions but also persisting in shade. AKA –pretty much anywhere.

Albizia julibrissin

ALJU

Triadica sebifera

TRSE6Synonym: Sapium sebiferum Common names: tallowtree, popcorntree, Chinese tallowtree

Leaves are alternately whorled, heart shaped, entire, 1-3” petioles

Found in wet ditches, streambanks, riverbanks, uplands sites

Triadica sebifera

TRSE6Common names: tallowtree, popcorntree, Chinese tallowtree

Twigs lime green turning gray with scattered brownish lenticels.

Can produce up to 100,000 seeds per year.

Triadica sebifera

TRSE6

Ailanthus altissima

AIALCommon names: tree-of-heaven, ailanthus, Chinese sumac, stinking sumac, paradise-tree, copal-tree

Leaves are pinnately compound

Leaf stalk with swollen base

Leaflets arranged sub-opposite

Circular glands under lobes at leaflet base

Ailanthus altissima

AIALCommon names: tree-of-heaven, ailanthus, Chinese sumac, stinking sumac, paradise-tree, copal-tree

Fruit and seeds: July to February. Wing-shaped fruit with twisted tips on female trees, 1 inch (2.5 cm) long. Single seed. Green turning to tan, then brown. Persist on tree for most of the winter.  

Large, heart-shaped leaf scars

Ailanthus altissima

AIALLook-a-like

Sumacs, Rhus spp. – terminal flower/fruit cluster and no glands on base of leaves.

Ailanthus altissima

AIAL

Photo Credits:

Amy Ferriter, State of Idaho, Bugwood.org

Dan Clark, USDI National Park Service, Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

Rebekah D. Wallace, University of Georgia, Bugwood.org

Troy Evans, Great Smoky Mountains National Park, Bugwood.org

Keith Kanoti, Maine Forest Service, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

Nancy Loewenstein, Auburn University, Bugwood.org

Chris Evans, Illinois Wildlife Action Plan, Bugwood.org

Gil Wojciech, Polish Forest Research Institute, Bugwood.org

Robert Vidéki, Doronicum Kft., Bugwood.org

End of Part 1

Most pictures were found at: http://www.forestryimages.org/

Franklin Bonner, USFS (ret.), Bugwood.org

Karan A. Rawlins, University of Georgia, Bugwood.org

John M. Randall, The Nature Conservancy, Bugwood.org

William Fountain, University of Kentucky, Bugwood.org

Rob Routledge, Sault College, Bugwood.org

Chuck Bargeron, University of Georgia, Bugwood.org

Amy Richard, University of Florida, Bugwood.org

Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, Bugwood.org

Annemarie Smith, ODNR Division of Forestry, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Jil Swearingen, USDI National Park Service, Bugwood.org

Photo Credits:

Paul Wray, Iowa State University, Bugwood.org

Ted Bodner, Southern Weed Science Society, Bugwood.org

Bill Cook, Michigan State University, Bugwood.org

John D. Byrd, Mississippi State University, Bugwood.org

Steve Manning, Invasive Plant Control, Bugwood.org

Nancy Fraley, USDI National Park Service, Bugwood.org

James Johnson, Georgia Forestry Commission, Bugwood.org

Warner Park Nature Center, Metropolitan Board of Parks and Recreation, Nashville, TN

David J. Moorhead, University of Georgia, Bugwood.org

Ron Lance, Asheville, NC

Richard Old, XID Services, Inc., Bugwood.org

B. Eugene Wofford, University of Tennessee Herbarium

Wofford and Chester, University of TN Herbarium

Tom Heutte, USDA Forest Service, Bugwood.org

Jenn Grieser, New York City Department of Environmental Protection, Bugwood.org

Barbara Tokarska-Guzik, University of Silesia, Bugwood.org

Dave Powell, USDA Forest Service, Bugwood.org

Forest & Kim Starr, Starr Environmental, Bugwood.org

Barry Rice, sarracenia.com, Bugwood.org

David Nance, USDA Agricultural Research Service, Bugwood.org

Karen Brown, University of Florida, Bugwood.org

Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org

The Nature Conservancy Archive, The Nature Conservancy, Bugwood.org