. A manual of weeds : with descriptions of all the most pernicious and troublesome plants in the United States and Canada, their habits of growth and distribution, with methods of control . Weeds. 262 EUPHORBIACEAE (SPURGE FAMILY) on very short pedicels; sterile flowers with five- parted calyx, five spatu- late fringed petals alter- nating with as many glands, usually ten sta- mens, or sometimes more, with filaments finely bearded below; fertile flowers with seven- to twelve-lobed calyx, no petals, and three styles twice or thrice cleft. Seeds gray or brownish, rounded oblong, with a tiny knob
. A manual of weeds : with descriptions of all the most pernicious and troublesome plants in the United States and Canada, their habits of growth and distribution, with methods of control . Weeds. 262 EUPHORBIACEAE (SPURGE FAMILY) on very short pedicels; sterile flowers with five- parted calyx, five spatu- late fringed petals alter- nating with as many glands, usually ten sta- mens, or sometimes more, with filaments finely bearded below; fertile flowers with seven- to twelve-lobed calyx, no petals, and three styles twice or thrice cleft. Seeds gray or brownish, rounded oblong, with a tiny knob or caruncle at the point; they are often an impurity of southern alfalfa seed. (Fig. 184.) Means of control Fig. Hogwort (Croton capital). X J. prevent seed produc- tion. Infested grass crops should even be harvested too early, in order to prevent continued fouling of the ground. Roadsides and waste places should be mown often enough to guard neighbor- ing soil from THREE-SEEDED MERCURY Acalypha virginica, L. Other English names: Wax-balls, Copper-leaf. Native. Annual. Propagates 'by seeds. Time of bloom: June to September. Seed-time: August to November. Range: Nova Scotia to Minnesota, southward to Florida and Texas. Habitat: Rich, moist soil; a common barnyard weed and a special nuisance in clover fields. The seeds of this weed, when an impurity in those of clover, are so nearly of the same size and weight that they are almost 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 Georgia, Ada Eljiva, 1859-1921. New York : Macmillan
Size: 1330px × 1879px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
