. Common weeds of the Canadian Prairies;. Weeds. Saponaria vaccaria L. COW COCKLE A smooth, hairless annual 1 to 2i feet high. Leaves grayish-green, smooth, entire, clasping stem, opposite, 1 to 3 inches long, ovate-lanceo- late. Flowers in loose corymbose cymes at head of stem. Petals united, i inch long with 5 pale- pink petals forming a flat corolla i inch across. Fruit an ovoid capsule with round, dull-black seeds, -^ inch in diameter. Common in fields and roadsides in southern areas. Often included in wild flower packages sold by seed houses. Sarcobatus vermiculatus (Hook.) Torr. GREASEWO
. Common weeds of the Canadian Prairies;. Weeds. Saponaria vaccaria L. COW COCKLE A smooth, hairless annual 1 to 2i feet high. Leaves grayish-green, smooth, entire, clasping stem, opposite, 1 to 3 inches long, ovate-lanceo- late. Flowers in loose corymbose cymes at head of stem. Petals united, i inch long with 5 pale- pink petals forming a flat corolla i inch across. Fruit an ovoid capsule with round, dull-black seeds, -^ inch in diameter. Common in fields and roadsides in southern areas. Often included in wild flower packages sold by seed houses. Sarcobatus vermiculatus (Hook.) Torr. GREASEWOOD A much-branched perennial 5 to 6 feet high, with spiny branches. Stems nearly white, leaves pale yellowish-green, linear, and 1 to H inches long. Male flowers in cylindrical spikes at ends of branches, female flowers singly in leaf axils. Fruit surrounded by a broad membranous wing. Rather poisonous to livestock, especially to lambs in spring. Strongly alkali-tolerant, found in sahne sloughs and flats in southwestern areas. Senecio jacobaea L. TANSY RAGWORT A perennial 2 to 3 feet high from shallow, short, thick rootstocks. Usually hairless but sometimes with tufts of woolly hairs at leaf axils. Leaves 2 to 3 times divided into broad, overlapping segments, dark green. Lower leaves 6 to 8 inches long, stalked; upper ones stalkless and slightly smaller. Flower heads showy, golden yellow, f inch across, in large, dense, terminal clusters. Common in eastern Canada and at one time thought to have spread to western areas, but as yet, presence here not certain. Senecio palustris (L.) Hook. MARSH RAGWORT. 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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