Nonnative Invasives ID Part 7

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Transcript Nonnative Invasives ID Part 7

SRS-FIA Invasive Plant
Identification 2012-2013
Part 7
This presentation contains the original invasive tree species added to the list preceding SRS-FIA manual version 6.0.
Princess Tree - Paulownia tomentosa
Opposite, entire, heart shaped
leaves, fuzzy hairs above and
Flowers April to May. Before
leaves in spring.
Pale – violet and fragrant.
Forms colonies
Forest margins
Princess Tree - Paulownia tomentosa
Leaves can get >2 feet long
Paulownia tomentosa
Princess Tree - Paulownia tomentosa
Elaeagnus Group (Olive Group)
• 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)
• Russian olive leaves:
deciduous, long lanceolate
sparse silver scales above
dense silver scales below
• Stems:
silver scales/smooth green-red
• Ecology:
forest margins
forest openings
Elaeagnus umbellata
Autumn olive
Elaeagnus angustifolia
Russian olive
Albizia julibrissin
Common 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
Triadica sebifera
Synonym: 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
Common names: tallowtree, popcorntree, Chinese tallowtree
Twigs lime green turning gray
with scattered brownish
Can produce up to 100,000
seeds per year.
Triadica sebifera
Ailanthus altissima
Common 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
Common names: tree-of-heaven, ailanthus, Chinese sumac,
stinking sumac, paradise-tree, copal-tree
Fruit and seeds: July to February. Wingshaped 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
Sumacs, Rhus spp. – terminal flower/fruit cluster and
no glands on base of leaves.
Ailanthus altissima
End of Part 1
Photo Credits:
Amy Ferriter, State of Idaho,
Franklin Bonner, USFS (ret.),
Dan Clark, USDI National Park Service,
Karan A. Rawlins, University of Georgia,
Joseph M. DiTomaso, University of California - Davis,
John M. Randall, The Nature Conservancy,
Rebekah D. Wallace, University of Georgia,
William Fountain, University of Kentucky,
Rob Routledge, Sault College,
Troy Evans, Great Smoky Mountains National Park,
Chuck Bargeron, University of Georgia,
Keith Kanoti, Maine Forest Service,
Amy Richard, University of Florida,
James H. Miller, USDA Forest Service,
Pennsylvania Department of Conservation and Natural
Resources - Forestry Archive,
Nancy Loewenstein, Auburn University,
Chris Evans, Illinois Wildlife Action Plan,
Annemarie Smith, ODNR Division of Forestry,
Gil Wojciech, Polish Forest Research Institute,
Leslie J. Mehrhoff, University of Connecticut,
Robert Vidéki, Doronicum Kft.,
Jil Swearingen, USDI National Park Service,
Most pictures were found at:
Photo Credits:
Paul Wray, Iowa State University,
Tom Heutte, USDA Forest Service,
Ted Bodner, Southern Weed Science Society,
Jenn Grieser, New York City Department of
Environmental Protection,
Bill Cook, Michigan State University,
John D. Byrd, Mississippi State University,
Barbara Tokarska-Guzik, University of Silesia,
Steve Manning, Invasive Plant Control,
Dave Powell, USDA Forest Service,
Nancy Fraley, USDI National Park Service,
Forest & Kim Starr, Starr Environmental,
James Johnson, Georgia Forestry Commission,
Barry Rice,,
Warner Park Nature Center, Metropolitan Board of Parks
and Recreation, Nashville, TN
David Nance, USDA Agricultural Research Service,
Karen Brown, University of Florida,
David J. Moorhead, University of Georgia,
Ron Lance, Asheville, NC
Richard Old, XID Services, Inc.,
B. Eugene Wofford, University of Tennessee Herbarium
Wofford and Chester, University of TN Herbarium
Ohio State Weed Lab Archive, The Ohio State University,
The Nature Conservancy Archive, The Nature