. Common weeds of the Canadian Prairies;. Weeds. Iva axillaris Pursh POVERTYWEED A herbaceous perennial 2 feet high, with woody, running roots. Leaves stalkless, entire, 3-nerved, obovate to linear-oblong, i to 1^ inches long; upper leaves alternate, lower ones opposite. Flowers solitary, small, yellow, borne reflexed in leaf axils. Very plentiful locally in saline Iva xanthifolia Nutt. FALSE RAGWEED An erect, branched annual 2 to 6 feet high, with rough, downy stem. Leaves broadly ovate, rough above and downy below, long-stalked, 2 to 6 inches long. Flowers in terminal and axil- lary
. Common weeds of the Canadian Prairies;. Weeds. Iva axillaris Pursh POVERTYWEED A herbaceous perennial 2 feet high, with woody, running roots. Leaves stalkless, entire, 3-nerved, obovate to linear-oblong, i to 1^ inches long; upper leaves alternate, lower ones opposite. Flowers solitary, small, yellow, borne reflexed in leaf axils. Very plentiful locally in saline Iva xanthifolia Nutt. FALSE RAGWEED An erect, branched annual 2 to 6 feet high, with rough, downy stem. Leaves broadly ovate, rough above and downy below, long-stalked, 2 to 6 inches long. Flowers in terminal and axil- lary spike-hke panicles. Very common in waste places around towns, spreading rapidly. 43. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Canada. Dept. of Agriculture. Research Branch. Ottawa, Queen's Printer
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Keywords: ., bookcentury1900, bookpublisherottawaqueensprin, booksubjectweeds
