. Common weeds of the Canadian Prairies;. Weeds. Sonchus asper (L.) Hill PRICKLY SOW-THISTLE An annual 2 to 6 feet high. Leaves slightly lobed, clasping stem at base; lobes spine-tipped, basal lobes rounded. Flowers i to 1 inch across, pale-yellow. Common in gardens and roadsides across the Sonchus oleraceus L. ANNUAL SOW-THISTLE An annual 2 to 8 feet high. Leaves deeply lobed, having soft prickles; lower leaves stalked, upper leaves clasping stem. Heads pale-yellow, i to 1 inch across. Fairly common in eastern parts as a garden weed or a weed of waste places, scarcer to the west. 6
. Common weeds of the Canadian Prairies;. Weeds. Sonchus asper (L.) Hill PRICKLY SOW-THISTLE An annual 2 to 6 feet high. Leaves slightly lobed, clasping stem at base; lobes spine-tipped, basal lobes rounded. Flowers i to 1 inch across, pale-yellow. Common in gardens and roadsides across the Sonchus oleraceus L. ANNUAL SOW-THISTLE An annual 2 to 8 feet high. Leaves deeply lobed, having soft prickles; lower leaves stalked, upper leaves clasping stem. Heads pale-yellow, i to 1 inch across. Fairly common in eastern parts as a garden weed or a weed of waste places, scarcer to the west. 62. 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
