. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. 96 COMMON WEEDS OF CANADA CONEFLOWER, BLACK-EYED vSUSAN OR YELLOW DAISY. Rudbeckia hirta, (L). Root.—Fibroui,. Stem.—Stout, simple, or spar- mgly branched, 1-2 feet high, rough or bristly ^^^'"^i-—MiGTnatc, nearly entire, triple ribl)ed, chiefly oblong-lanceolate; the upjjcr sessile thick Flowers.—Single showy heads, 1-2 inches across- orange-yellow rays or petals, 10-20 in nunilxfr' spherical or cone-shai)ed; dark, purple-brown centre' *ruit.—Head o. jeeds. Seeds.—Da
. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. 96 COMMON WEEDS OF CANADA CONEFLOWER, BLACK-EYED vSUSAN OR YELLOW DAISY. Rudbeckia hirta, (L). Root.—Fibroui,. Stem.—Stout, simple, or spar- mgly branched, 1-2 feet high, rough or bristly ^^^'"^i-—MiGTnatc, nearly entire, triple ribl)ed, chiefly oblong-lanceolate; the upjjcr sessile thick Flowers.—Single showy heads, 1-2 inches across- orange-yellow rays or petals, 10-20 in nunilxfr' spherical or cone-shai)ed; dark, purple-brown centre' *ruit.—Head o. jeeds. Seeds.—Dark-brown, almost black 4-angled, about M inch long, with no pappus or tuft of hair. Average yield equals 2,(KK) tier plant. Duration.—Biennial. Flowering.—June- August Seeding.—August—Scptemlier. Propaea- seeds. in hay. and in clover seed Eradication.—Mow often; spud, and summer-fallow. Yellow Daisy is found in old fields and tneadows. and in grain fields in Eastern Canada. It can be killed bv mowing; but it is sometimes necessary to break up the meadow or pasture, and follow with CoNEl'LOWKK. HUACK HYIiDa llOC-CrOp. Ihe plant was named Rudbeckia for Rudbeck, a Swedish Kudbcckia hirtu. ( L) COMMON BEGGAR-TICKS. Bidcns frondflsa, (L). Root. Filmnis. Stem.—Krect branched, feet high. Leaves. ' Pinnate; .{ broad, lanceolate, coarsely-toothed leaflets. Flowers. -Yellow; 'i inch heads; flowers rayless and insignificant; outer in- volucre longer than the head. Fruit. -Head of flat, wedge-shaped, ciliate achenes with upturned liristles- two- awned. Seeds.—Broad, flat, with two barlied awns which cling to the dress or to the fleece of animals; alxHit ''h inch long; awns ,'„ inch long. Duration.—Annual. Flow- ering. July August. Seeding.— August -vSept(nil)er. Propagation. -By seeds. Dispersal.—Seeds. Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1910
