. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. 104 cc'.i/.\/(>,v II t:EUs or i a.\a \ abundant iti soim- sictions. Tlit- stim is viscid pubiscTnl and strong scvnttd, the- rav Jlonts want ing, and tlie leavts twici-pinnatifid. Golden Ragwort, or Squaw weed, Semcio aureus (L). has a smooth stem. 12 fict high, orbicular or roundish, ovate radical leaves (or cordate, petioled and crenately toothed), and sessile, lanceolate' decply-pmnatifid stem leaves, and heads, i ach with' 8-12 rays, m corymbs. It is found in swamps
. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. 104 cc'.i/.\/(>,v II t:EUs or i a.\a \ abundant iti soim- sictions. Tlit- stim is viscid pubiscTnl and strong scvnttd, the- rav Jlonts want ing, and tlie leavts twici-pinnatifid. Golden Ragwort, or Squaw weed, Semcio aureus (L). has a smooth stem. 12 fict high, orbicular or roundish, ovate radical leaves (or cordate, petioled and crenately toothed), and sessile, lanceolate' decply-pmnatifid stem leaves, and heads, i ach with' 8-12 rays, m corymbs. It is found in swamps wet meadows, and in gardens. COMMON' RAGWORT. OR STINKING WIIXIIC. Sinirii) Jacolura, (L). 'lishv and fihnuis. Stem, hrcct, branching, 2-:{ fi-et high, glabnuis or somewhat cottony. Leaves.—Numer- ous, lyrate, bipinnatiful or irregnlarlv- lobed, the lower witli broad segment's the ui)i)er with linear divisions all glabrous; leaves give ragged :ipi)earance to i)lant. Flowers.—VeUow, '., inch, in flat cymes or spreading corymb. Fruit. -Head of achenes, whicli blow about like thistle or groundsel seeds. Seeds.—Nearlv white ,',, inch long, ridged lengthwist^, slightly convex; pappus of short, soft hairs. Duration.—Short-lived iierennial Flowering.—July—Septenil)er. Seeding. —August—Se[)tember. Propagation.— Hv seeds and offsets. Dispersal. — .Seeds carried by winds; in hav and grain Eradication. Spud: lireak'up sod; mow to prevent seeding. Stinking Willie introduced into Nova Scotia and Pnnce Edward Island from the British Isles about fifty years ago. In , it is known as Jn"^.^''"?;- -""'' '" '"^'"^'^ S^«^'^ as -Stinking Wdhe. Pictou. Antigonish. and parts of Guvs- borough and Colchester counties are completelv over-run by the weed. It is common in P E l' and is also found in along the line of the I C r' This weed, Ragwort, is of particular interest because it has been proved bv experiments, recentlv cond
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1910
