. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. TiMHUiNc; MrsTAKi) SiMmhrium ulli^yiiniim. il Ball Mustaku .Vi>7i(( piiniiulala, (L) HALL MUSTARD. Xislia ptiuuulaia, (L). Tap or fibrous root. Hrcct, tall, slemier: strong i)lants with a few long hranclics; whole plant covered with small, op])ri'sse(i, star"sha])efl hairs. Vellowish- griTn. alternate, entire; lower k-aves lanct'-shaiied and narrowed at till- base; U])per leaves arrow-shaiitd, bluntlv pointfd and clasi)ing the sti-iii. Flower
. Common weeds of Canada [microform] : a pocket guide. Weeds; Mauvaises herbes, Lutte contre les; Weeds; Mauvaises herbes. TiMHUiNc; MrsTAKi) SiMmhrium ulli^yiiniim. il Ball Mustaku .Vi>7i(( piiniiulala, (L) HALL MUSTARD. Xislia ptiuuulaia, (L). Tap or fibrous root. Hrcct, tall, slemier: strong i)lants with a few long hranclics; whole plant covered with small, op])ri'sse(i, star"sha])efl hairs. Vellowish- griTn. alternate, entire; lower k-aves lanct'-shaiied and narrowed at till- base; U])per leaves arrow-shaiitd, bluntlv pointfd and clasi)ing the sti-iii. Flowers.—Small, i-^ inch, 'orangt-yellow: very long racemes. Fruit—Small, round, onc-si-eded; shot- like pods, on slender footstalks about half an inch in length. The pod does not open to discharge the seed, but dries u]) and pnjduces a small, roundish, brown, wrinkled object, about ,'.-, inch across, and looking like a small ])iecc of earth. Seeds.—" Round, very small, yellow. Annual or winter an- nual. June- August. Seeding. Julv- .September. Propagation.— By seed only. Hv winds, and in seed grain. sumnier-fallowiiig, and the disking of stubble in fall and spring. The edges of fields should be mown before the seeds of Hall .Mustard are ripe. Hall Mustard, or Yellow-weed, was introduced into the West se\eral years ago, and is now a trouble- some weed iti grain fields, from Manitoba to the Facitic. The weed has spread chiefly from the in-. 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 Hamilton, D. Wiley (David Wiley), 1878-1935. Toronto : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1910
