A guide to nonnative invasive plants inventoried in the north by ...

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Viburnum opulus European cranberrybush VIOP Snowball bush Form: Deciduous shrub 3-16 ft (1-5 m) tall. Leaves: Opposite, palmately lobed and veined (maplelike); margins with a few coarse teeth; pubescent on abaxial surface (at least on veins); petioles with sessile glands that are concave and wider than high. Flowers/fruit: White with narrow to broadly campanulate corollas, in large clusters; outer flowers somewhat larger and with broadly flaring corollas. Fruit a reddish drupe about ½ in. (1 cm) in diameter. Habitat: Moist to wet soils along lake margins, slopes, or open woods; also found in cultivated fields. Similar species: Cranberry viburnum or highbush-cranberry (Viburnum trilobum or V. opulus var. americanum) has stalked petiole glands that are rounded and higher than wide. Notes
Viburnum opulus European cranberrybush Snowball bush The Dow Gardens Archive, Bugwood.org The Dow Gardens Archive, Bugwood.org Richard Webb, Self-employed horticulurist, Bugwood.org Richard Webb, Self-employed horticulurist, Bugwood.org
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United States Department of Agricul
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A Guide to Nonnative Invasive Plant
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Tree Species Contents Acer platanoi
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Acer platanoides Norway maple ACPL
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Paul Wray, Iowa State University, w
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Ailanthus altissima Tree-of-heaven
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Barbara Tokarska-Guzik, University
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Albizia julibrissin Silktree ALJU J
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James H. Miller, U.S. Forest Servic
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Elaeagnus angustifolia Russian oliv
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Melaleuca quinquenervia Punktree ME
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Amy Ferritar, South Florida Water M
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Melia azedarach Chinaberry MEAZ Jam
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Paulownia tomentosa Princesstree PA
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James Allison, Georgia Department o
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Robinia pseudoacacia Black locust R
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Elizabeth Czarapata Robinia pseudoa
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Tamarix ramosissima Saltcedar TARA
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Steve Dewey, Utah State University,
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Triadica sebifera Tallow tree TRSE6
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Chris Evans, University of Georgia,
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Ulmus pumila Siberian elm ULPU Stev
Page 49 and 50: Patrick Breen, Oregon State Univers
Page 51 and 52: Berberis thunbergii Japanese barber
Page 53 and 54: Berberis thunbergii Japanese barber
Page 55 and 56: Berberis vulgaris Common barberry B
Page 57 and 58: Leslie J. Mehrhoff, University of C
Page 59 and 60: Elaeagnus umbellata Autumn olive EL
Page 61 and 62: Chris Evans, University of Georgia,
Page 63 and 64: Frangula alnus Glossy buckthorn FRA
Page 65 and 66: © John M. Randall, The Nature Cons
Page 67 and 68: Ligustrum vulgare European privet L
Page 69 and 70: Kelly Kearns, Wisconsin DNR Ligustr
Page 71 and 72: Lonicera x bella Showy fly honeysuc
Page 73 and 74: Lonicera x bella Showy fly honeysuc
Page 75 and 76: Lonicera maackii Amur honeysuckle L
Page 77 and 78: James H. Miller, U.S. Forest Servic
Page 79 and 80: Lonicera morrowii Morrow’s honeys
Page 83 and 84: Lonicera tatarica Tatarian honeysuc
Page 85 and 86: Patrick Breen, Oregon State Univers
Page 87 and 88: Rhamnus cathartica Common buckthorn
Page 89 and 90: Elizabeth Czarapata Leslie J. Mehrh
Page 91 and 92: Rosa multiflora Multiflora rose ROM
Page 95 and 96: Spiraea japonica Japanese meadowswe
Page 99: Viburnum opulus European cranberryb
Page 103 and 104: Celastrus orbiculatus Asian bitters
Page 105 and 106: Celastrus orbiculatus Asian bitters
Page 107 and 108: Cynanchum louiseae (Syn.: Vincetoxi
Page 109 and 110: Kelly Kearns, Wisconsin DNR Cynanch
Page 111 and 112: Cynanchum rossicum (Syn.: Vincetoxi
Page 115 and 116: Hedera helix English ivy HEHE David
Page 119 and 120: Lonicera japonica Japanese honeysuc
Page 121 and 122: Chuck Bargeron, University of Georg
Page 123 and 124: Alliaria petiolata Garlic mustard A
Page 125 and 126: Alliaria petiolata Garlic mustard E
Page 127 and 128: Centaurea biebersteinii Spotted kna
Page 129 and 130: Elizabeth Czarapata Elizabeth Czara
Page 131 and 132: Cirsium arvense Canada thistle CIAR
Page 133 and 134: Chris Evans, University of Georgia,
Page 135 and 136: Cirsium vulgare Bull thistle CIVU E
Page 137 and 138: Utah State University Archives, www
Page 139 and 140: Euphorbia esula Leafy spurge EUES W
Page 141 and 142: Elizabeth Czarapata Euphorbia esula
Page 143 and 144: Hesperis matronalis Dame’s rocket
Page 145 and 146: Kelly Kearns, Wisconsin DNR Kelly K
Page 147 and 148: Lysimachia nummularia Creeping jenn
Page 149 and 150: Lysimachia nummularia Creeping jenn
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Lythrum salicaria Purple loosestrif
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Steve Dewey, Utah State University,
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Polygonum cuspidatum Japanese knotw
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Elizabeth Czarapata Jil M. Swearing
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Polygonum sachalinense Giant knotwe
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Ben Legler, The Burke Museum of Nat
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Polygonum x bohemicum Bohemian knot
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Ben Legler, The Burke Museum of Nat
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Microstegium vimineum Nepalese brow
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Elizabeth Czarapata Elizabeth Czara
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Phalaris arundinacea Reed canary gr
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Elizabeth Czarapata Phalaris arundi
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Phragmites australis Common reed PH
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Phragmites australis Common reed Ph
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References Flora of North America E
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Appendix A Leaf and inflorescence m
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Cyme A Cyme is a group of flowers i
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Descriptive Flower Shapes Shape Nam
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Cruciform (Cross-shaped) A flower w
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Appendix C Key to the species Lonic
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Appendix E Key to the species Berbe
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Appendix G Key to the species Elaea
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Discoid - In the Asteraceae, with a
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Olson Cassandra; Cholewa, Anita F.
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