File:Farm weeds of Canada (1906) (14775876972).jpg

Identifier: farmweedsofcana00clar (find matches)
Title: Farm weeds of Canada
Year: 1906 (1900s)
Authors: Clark, George Harold, 1872- Fletcher, James, 1852-1908 Criddle, Norman Canada. Dept. of Agriculture
Subjects: Weeds Weeds Botany
Publisher: Ottawa : Published by direction of the Minister of Agriculture
Contributing Library: ASC - York University Libraries
Digitizing Sponsor: Ontario Council of University Libraries and Member Libraries

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POVERTY W&ED (Iva axillaris, i-ur.-m ) Plate 23
Text Appearing After Image:
I GREAT RAGWE-EDI Ambrosia hnfida./. > PLATE 23.GREAT RAGWEED. Ambrosia Irifida. L. Other Jlinglisii names: Tall Kagweed, Crownweed, Kingweed, Bitter-weed. (Noxious: Dom., Ont., Man., X.W.). Native. Annual. A tall, coarse branching plant, 4 to 8 feet high, withvery rough stems and leaves; pale green and bearing the sterile and fertileflowers in different heads on the same plant, the sterile in long, slender spikesat the ends of the branches, and the fertile two or three together, sessile inthe axils of the leaves at the base of the spikes. Sterile flowers cup-shaped,nodding, \ inch across; anthers yellow and conspicuous; fertile flowers in-conspicuous; pistils slender and purplish. Leaves opposite on long marginedpetioles, very variable in shape, on young plants deeply indented but scarcelylobed; as the stems grow, 3 or even 5-lobed leaves are produced, and on manyplants may be found leaves without lobes. Seeds fachenes) (Plate -55. fig. 57—natural size and enlarged 4 times) brow

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