Alberta Invasive Plant Identification Guide

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Toadflax, Yellow Linaria vulgaris, Scropulariaceae (Snapdragon Family) Category: Noxious •Information: Introduced from Europe as an ornamental. Also called “butter and eggs”. Is often found in roadside ditches. Has a very pleasant sweet smell. •Life cycle: Perennial. •Root: Creeping rhizomes. •Leaves: Numerous, alternate, pale green to gray-green, individually connected to the stem, long (2 1/2 inches long or longer) and narrow, with smooth edges and slightly rubbery to touch. Smaller leaves are present in the axis of the stem and main leaf (not present on Leafy Spurge). •Stems: 20-60cm inches tall, usually not branched. •Flower: Yellow, snapdragon-like flowers with orange throat, 2.5-3cm long with downward spur/ tail (1 inch long), on short stalks in dense clusters at top of stems. Generally flowers in mid August. •Seed/Fruit: Capsule brown, round to oval with two compartments. Seeds dark brown to black, less than 4cm in diameter, flattened, with papery circular wing. •Control: Chemical mid august. http://www.invasiveplants.ab.ca/Downloads/FS-CommonToadflax.pdf Sarah Schumacher, Wheatland County Alberta Sustainable Resource Development Montana State University Invasive Plant Identification Guide Sarah Schumacher, Wheatland County Sarah Schumacher, Wheatland County 76 Sarah Schumacher, Wheatland County
Glossary adventitious roots Roots appearing in an unusual or unexpected place on a plant. alternate Referring to a leaf or bud arrangement in which there is one bud or one leaf at a node. annual A plant that lives one year or less. A winter annual germinates late one growing season and produces seed and dies during the next growing season. basal Refers to the base of the plant. biennial A plant that lives for two growing seasons, normally producing a basal rosette the first year and the flower and fruit the second year. bract A small leaf-like structure surrounding or enclosing the flower, usually below the petals. capsule Dry fruit with more than one seed. clasping Partly surrounding the stem. fibrous roots Root system with many, fine, diffuse roots. flower head A cluster of individual flowers in one compact unit, usually referring to compound flower of the Sunflower Family members. inflorescence One or more flowers which comprise the flowering part of the plant. lobed Divided less than one-half the distance to the base or mid-vein, usually rounded or obtuse. midrib The central axis or vein of the leaf blade or leaflet. noxious weeds Invasive plant which a landowner has a legal responsibility to control, based on the Alberta Weed Act 77
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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
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Flowering Rush Butomus umbellatus,
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USDA APHIS PPQ Archive, USDA APHIS
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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
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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: Toadflax, Dalmatian Linaria dalmati
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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