. 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. OHENOPODIAOEAE (GOOSEFOOT FAMILY) 109 branched, and very leafy. Leaves oblong to lance-shaped, one to three inches long, smooth, wavy-toothed or nearly entire, especially the upper ones, which are pointed at both ends and sessile or with very short petioles. Flowers in dense terminal and axil- lary spikes, intermixed with small leaves; calyx green, its five lobes completely enclosing the small, black
. 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. OHENOPODIAOEAE (GOOSEFOOT FAMILY) 109 branched, and very leafy. Leaves oblong to lance-shaped, one to three inches long, smooth, wavy-toothed or nearly entire, especially the upper ones, which are pointed at both ends and sessile or with very short petioles. Flowers in dense terminal and axil- lary spikes, intermixed with small leaves; calyx green, its five lobes completely enclosing the small, black, flattened seed. (Fig. 66.) Occupying the same range is a closely re- lated plant, commonly called Worm- seed (C. am- brosioides, var. anthelmlnticum, Gray), differ- ing chiefly in being perennial in latitudes where the ground does not freeze in winter; also, it is a larger, more strongly-scented plant, with more coarsely toothed leaves, two to five inches long and its flowering spikes often lacking the small, entire, sessile leaves that are intermingled with the flowers of Mexican Tea. Both plants are used in medicine as anthelmintics, and the seeds, from which the essential oil is usually distilled, are salable in the drug market for six to eight cents a pound. (Fig. 67.) Fig. 67.—Wormseed Means of control (Chenopodium ambro- _^, . .... sioides var. anthelminti- Close cutting or hand-pulling while in cum), xi. early 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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
