. Common weeds of the Canadian Prairies;. Weeds. Androsace septentrionalis L. var. puberulenta (Rydb.) Knuth PYGMYFLOWER A low-growing annual with leaves less than H inches long, mostly basal. Found on eroded and dry soils and often plentiful on stubble fields and cultivated land in early spring. A common plant but so small that it is not gen- erally noticed. Apocyrmm androsaemifolium L. SPREADING DOGBANE. A husky perennial from horizontal rootstocks, to 4 feet high, much-branched, with a milky sap. Leaves opposite, oval or ovate, 1 to 3 inches long, lighter and slightly hairy on underside. Fl
. Common weeds of the Canadian Prairies;. Weeds. Androsace septentrionalis L. var. puberulenta (Rydb.) Knuth PYGMYFLOWER A low-growing annual with leaves less than H inches long, mostly basal. Found on eroded and dry soils and often plentiful on stubble fields and cultivated land in early spring. A common plant but so small that it is not gen- erally noticed. Apocyrmm androsaemifolium L. SPREADING DOGBANE. A husky perennial from horizontal rootstocks, to 4 feet high, much-branched, with a milky sap. Leaves opposite, oval or ovate, 1 to 3 inches long, lighter and slightly hairy on underside. Flowers pink, in clusters at ends of branches and in leaf axils. Fruits pods, tubular, in pairs about 4 inches long, containing hairy- tipped seeds. Common in woodlands and on light sandy soils. Apocynum sibiricum Jacq. CLASPING-LEAVED DOGBANE. 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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