Alberta Invasive Plant Identification Guide

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Leafy Spurge Euphorbia esula, Euphorbiaceae (Spurge Family) Category: Noxious • Information: Introduced from Eurasia. Commonly found in pastures and river valleys. Similar to ornamental varieties. Montana State University Invasive Plant Identification Guide • Life cycle: Perennial. • Root: Brownish rhizomes with pink buds. • Leaves: Alternate, narrow, 2-10cm long. Stems and leaves contain a white milky sap (similar to Dandelions). • Stems: Up to 90cm tall. • Flower: Seven to 10 yellowish green flowers in small clusters. The inconspicuous flower is sub tended by showy, heart-shaped yellow bracts. • Seed/Fruit: Oblong, grayish to purple, and borne in a three-celled fruit. • Toxic: May be toxic to horses, cattle, humans. • Control: Chemical, targeted grazing (sheep), do not cultivate. 72 AIPC Fact sheet http://www.invasiveplants.ab.ca/Downloads/FS-LeafySpurge.pdf Chris Evans, River to River CWMA, Bugwood.org Steve Dewey, Utah State University, Bugwood.org Wheatland County
Tansy, Common Tanacetum vulgare, Asteraceae (Sunflower Family) Category: Noxious •Information: Introduced as an ornamental, commonly found across much of Alberta in river valleys and roadside ditches •Life cycle: Perennial. •Root: Rhizomatous, woody. •Leaves: Leaves alternate, consistent in size, and deeply divided into leaf- lets with toothed margins. Leaves have a strong odour when crushed. •Stems: 30cm -1.8m tall, often purplish red •Flower: Numerous (20 to 100) yellow- orange, button-like flower heads appear in flat-topped, dense clusters on the terminal stem. Flowers lack long (ray) petals. •Seed/Fruit: Yellowish brown seeds have five-toothed ridges. •Toxic: Horses, cattle, humans. •Control: Chemical. 73 AIPC Fact sheet http://www.invasiveplants.ab.ca/Downloads/FS-CommonTansy.pdf Sarah Schumacher, Wheatland County Sarah Schumacher, Wheatland County Sarah Schumacher, Wheatland County Wheatland County
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Alberta Invasive Plant Identificati
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Alberta Invasive Plant Identificati
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Alberta Weed Control Act Legislatio
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White Flowers Scentless Chamomile P
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Yellow Flowers Hawkweed spp. Pg. 24
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Prohibited Noxious Weeds Prohibited
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Balsam, Himalayan Impatiens glandul
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http://commons.wikimedia.org/wiki/F
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Montana State University Invasive P
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Montana State University Invasive P
Page 21 and 22: Flowering Rush Butomus umbellatus,
Page 23 and 24: USDA APHIS PPQ Archive, USDA APHIS
Page 25 and 26: Michael Shephard, USDA Forest Servi
Page 27 and 28: Donna R. Ellis, University of Conne
Page 29 and 30: Knapweed, Bighead Centaurea macroce
Page 31 and 32: Montana State University Invasive P
Page 33 and 34: Montana State University Invasive P
Page 35 and 36: knapweed, Squarrose Centaurea virga
Page 37 and 38: Knotweed Complex Fallopia spp./ Pol
Page 39 and 40: Steve Dewey, Utah State University,
Page 41 and 42: Puncturevine Tribulus terrestris, Z
Page 43 and 44: Rush Skeletonweed Chondrilla juncea
Page 45 and 46: Saltlover Halogeton glomeratus, Che
Page 47 and 48: Starthistle, Yellow Centaurea solst
Page 49 and 50: Thistle, Nodding Carduus nutans, As
Page 51 and 52: Noxious Weeds Noxious Weeds have th
Page 53 and 54: Bellflower, Creeping Campanula rapu
Page 55 and 56: Blueweed Echium vulgare, Boraginace
Page 57 and 58: Brome, Japanese Bromus japonicas, P
Page 59 and 60: Buttercup, Tall Ranunculus acris, R
Page 61 and 62: Clematis, Yellow Clematis tangutica
Page 63 and 64: Oxeye Daisy Leucanthemum vulgare, A
Page 65 and 66: Henbane, Black Hyoscyamus niger, So
Page 67 and 68: Hound’s‑Tongue Cynoglossum offi
Page 69 and 70: Life cycle: Perennial. Root: Deep
Page 71: Sow thistle, Perennial Sonchus arve
Page 75 and 76: Toadflax, Dalmatian Linaria dalmati
Page 77 and 78: Glossary adventitious roots Roots a
Page 79 and 80: Weed Websites Alberta Invasive Plan
Page 81: Produced by Wheatland County For mo
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Alberta Invasive Plant Identification Guide

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