. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. COMMlKX WEEDS OF CANADA 53 stt-ds. Dispersal. Hy winds, hirtls. and in Krain seeds. Eradi- 'Sitiniiier-fiillow, ;in<l cultivate. Erect Cinqucfoil is a very common pest in mead- ows, pastures, dooryards, etc., througlrout Canada. Potentilla arguta, (Fursh.), has a stout brownish- hairy stem. 1-2 ft. high, pinnate leaves, of 7-11 oval, serrate leaflets downy underneath; upper part of plant clammy. SILVERY CINQUEFOIL. Potentilla argentea, (1,). Roots.—Fibrous, and
. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. COMMlKX WEEDS OF CANADA 53 stt-ds. Dispersal. Hy winds, hirtls. and in Krain seeds. Eradi- 'Sitiniiier-fiillow, ;in<l cultivate. Erect Cinqucfoil is a very common pest in mead- ows, pastures, dooryards, etc., througlrout Canada. Potentilla arguta, (Fursh.), has a stout brownish- hairy stem. 1-2 ft. high, pinnate leaves, of 7-11 oval, serrate leaflets downy underneath; upper part of plant clammy. SILVERY CINQUEFOIL. Potentilla argentea, (1,). Roots.—Fibrous, and with creeping underground stem. Stem.—Ascending, iihout (i inches high, branched at the suni- uiit, wliite-woolly, spreading. Leaves.— Dark-green aliove and silvery-white Ijelow, palmate, of five leaflets, the latter deeply serrate towards the aj)e.\, with revolute margins. Flowers.—Yellow, ^ incli; j)etals longer than sepals; flowers in cymes. Fruit.— Head f)f dry achenes. Seeds.— Small, reseml)ling those of Rough Cin(|ue- foil; surface rough, brownish in color. Duration.— Perennial. Flowering.—June —September. Seeding.—Jidy—Septem- ber. Propagation.—By seeds, and buds. Dispersal.—By seeds and spreading under- ground stems. Eradication.—Break so<i, and cultivate. Silvery Cinquefoil is found in pastures, lawns, dry fields, and along roadsides. It has been intro- duced from Europe. In some localities it is prob- ably indigenous. In woodland and meadows one mav find many representatives of the Rose family, a group which contains our luscious strawberry and raspberry, and many genera with non-edible fruits, such as cinquefoil. Macoun's Catalogue gives over forty different species and sub-species of cinquefoil. Among these is the common Shrubby Cinquefoil. Potentilla jruticosa, (L), which is an erect, shrubby perennial common on the rocky margins of rivers and lakes throughout Canada. The flowers look like yellow strawberrv CiNUUBP
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1910
