Alberta Invasive Plant Identification Guide

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Brome, Downy (Cheat Grass) Bromus tectorum, Poaceae (Grass Family) Category: Noxious • Information: Other names include downy chess, and cheatgrass. This weed can reduce agricultural production and is a fire hazard in roadside ditches. • Life Cycle: Annual or winter annual, blooms early in the growing season. • Root: Fibrous roots. Sarah Schumacher, Wheatland County • Leaves: Leaf blades are 2-4 mm wide, 5-12 cm long covered with soft hairs. The ligule is present; toothed, 1-3 mm long. • Stems: Covered with soft hairs, 5-60cm tall. • Flower: Nodding Panicle, often reddish-purple when mature, covered with soft hairs, long awns. • Seed/Fruits: Aggressive seed producer. • Toxicity: Awns can irritate livestock mouths. • Control: Early spring, chemical, hand pick. Sarah Schumacher, Wheatland County Wheatland County Sarah Schumacher, Wheatland County 56 Sarah Schumacher, Wheatland County Sarah Schumacher, Wheatland County
Brome, Japanese Bromus japonicas, Poaceae (Grass Family) Category: Noxious • Information: Similar to Downy Brome, also known as Japanese Chess. • Life Cycle: Annual or winter annual. • Root: Fibrous roots. • Leaves: Leaf blades are 2-4 mm wide, covered with soft white hairs, ligule present. • Stems: Covered with soft hairs, 30-60cm tall. • Flower: Panicles droop to one side, spikelet flattened, shorter awns than downy brome and not as drooping. • Seed/Fruits: Aggressive seed producer. • Control: Graze early before seed set, chemical, hand pick. Sarah Schumacher, Wheatland County NPS Photo by Jim Pisarowicz Sarah Schumacher, Wheatland County 57
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Alberta Invasive Plant Identificati
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Alberta Invasive Plant Identificati
Page 5 and 6: Alberta Weed Control Act Legislatio
Page 7 and 8: White Flowers Scentless Chamomile P
Page 9 and 10: Yellow Flowers Hawkweed spp. Pg. 24
Page 11 and 12: Prohibited Noxious Weeds Prohibited
Page 13 and 14: Balsam, Himalayan Impatiens glandul
Page 15 and 16: http://commons.wikimedia.org/wiki/F
Page 17 and 18: 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 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: Blueweed Echium vulgare, Boraginace
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 and 72: Sow thistle, Perennial Sonchus arve
Page 73 and 74: Tansy, Common Tanacetum vulgare, As
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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