Alberta Invasive Plant Identification Guide

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Montana State University Invasive Plant Identification Guide •Information: Introduced from Europe. •Life cycle: Perennial. Hawkweed, Meadow - Hieracium caespitosum Hawkweed, Mouse‑ear - Hieracium pilosella Asteraceae (Sunflower Family) Category: Prohibited Noxious •Root: Shallow fibrous roots, stolons and rhizomes. •Leaves: Basal rosettes have hairy, narrow, spatula-shaped leaves, dark green above and light green below. •Stems: Rosettes produce 10 to 25 flowering stems up to 90cm tall. Stems have short, stiff hairs and few, if any, leaves. The entire plant contains a milky juice. •Flower: 5 to 30, bright yellow flower heads. •Seed/Fruit: Black, tiny, and plumed. •Control: Chemical. http://www.invasiveplants.ab.ca/Downloads/BChawkweeds.pdf 24 Sarah Schumacher, Wheatland County
Michael Shephard, USDA Forest Service, Bugwood.org Orange Hawkweed Hieracium aurantiacum, Asteraceae (Sunflower Family) Category: Prohibited Noxious Michael Shephard, USDA Forest Service, Bugwood.org • Information: Introduced from Europe as an ornamental. • Life Cycle: Perennial. • Root: Shallow, fibrous, creeping. • Leaves: Rosette leaves are narrow, spatula-shaped, hairy, 10-15cm long, and darker green on the upper surface. • Stems: 30-90cm tall with bristly hairs and 0-3 small leaves. Entire plant contains a milky juice. www.ontariowildflower.com/alien_wildflower_meadow.htm#orange hawkweed • Flower: 5 to 30 flower heads form a compact, umbelliform inflorescence at stem apex. Flower heads have red-orange petals with notched tips. • Seed/Fruit: Dark brown or black with ridges and bristly plumes. http://www.invasiveplants.ab.ca/Downloads/FS-OrangeHawkweed.pdf 25 www.ontariowildflower.com/alien_wildflower_meadow.htm#orange hawkweed
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: USDA APHIS PPQ Archive, USDA APHIS
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 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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