Alberta Invasive Plant Identification Guide

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Montana State University Invasive Plant Identification Guide Hoary Alyssum Berteroa incana, Brassicaceae (Mustard Family) Category: Prohibited Noxious Information: common on sand and gravel soils and establishes on roadsides, railway embankments, and heavily grazed pastures. Life cycle: Biennial. Root: Taproot. Leaves: All are greyish-green with star shaped hairs. Basal leaves 2-8cm long with slender stalks. Stem leaves face upward, pressed to stem. Lower leaves with short stalks, upper leaves lack stalks. Stems: 30-90cm tall, erect, branched, covered with star-shaped hairs. Flower: White, small, deeply notched petals on slender stalks, sepals hairy. Seed/Fruit: Flattened oval seed pods, with star-shaped hairs close to stem; styles remain, pod chambers contain 3 to 7 seeds. Toxic: Horses. Control: Hand pick. Montana State University Invasive Plant Identification Guide Sarah Schumacher, Wheatland County 26 Sarah Schumacher, Wheatland County Montana State University Invasive Plant Identification Guide
Donna R. Ellis, University of Connecticut, Bugwood.org Hogweed, Giant Heracleum mantegazzianum, Apiaceae (Carrot Family) Category: Prohibited Noxious Information: Very tall, grows in moist areas. Life Cycle: Herbaceous biennial. Root: Large deep taproot. Leaves: Compound leaves 10-15cm wide, palmate, underside is covered in coarse white hairs. Stems: 2-6m tall, hollow stem, 5-10cm wide, covered in bristles and purple mottles. Flower: Umbel, up to 75cm wide, white, 5 petaled. Seed/Fruits: 2 wings, flat, each contains 1 seed, up to 20,000 seeds per plan. Toxicity: Sap on skin can cause rash and blisters, cover skin when dealing with this weed. Control: Manual, mechanical, stump treatment. Donna R. Ellis, University of Connecticut, Bugwood.org Terry English, USDA APHIS PPQ, Bugwood.org 27 Leslie J. Mehrhoff, University of Connecticut, Bugwood.org USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org
Page 1 and 2: Alberta Invasive Plant Identificati
Page 3 and 4: 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: Michael Shephard, USDA Forest Servi
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 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 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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