. 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. POLTGONAOEAE {BUCKWHEAT FAMILY) BROAD-LEAVED DOCK Ribmex obtusifblius, L. Other English names: Bitter Dock, Butter Dock, Blunt-leaved Dock. Introduced. Perennial. Propagates by seeds. Time of bloom: June to August. Seed-time: August to November. Range: Throughout the United States and southern British America. Habitat: Fields, meadows, pastures, and waste places. A large, very robust plant, in many l
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. 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. POLTGONAOEAE {BUCKWHEAT FAMILY) BROAD-LEAVED DOCK Ribmex obtusifblius, L. Other English names: Bitter Dock, Butter Dock, Blunt-leaved Dock. Introduced. Perennial. Propagates by seeds. Time of bloom: June to August. Seed-time: August to November. Range: Throughout the United States and southern British America. Habitat: Fields, meadows, pastures, and waste places. A large, very robust plant, in many localities, the most common of the docks. Stem stout, erect, grooved, simple or with a few branches, somewhat rough, especially near the top. Lower leaves often more than a foot in length and half as broad, oblong, with heart-shaped bases and rounded or bluntly pointed tips, the veins somewhat hairy on the under side; petioles long and thick; stem leaves nar- rower and more pointed, all petioled. Panicle large and loose, the whorls some- what distant, often subtended by leafy bracts ; pedicels slender, jointed below the middle, longer than the calyx-lobes; the valves, which enclose the fruit, pointed- ovate, or nearly halberd-shaped, strongly net-veined, sharply toothed at the side, and only one of them bearing a tubercle on the back. Achene dark red, smooth and shining, its three faces concave and its angles faintly margined. Means of control the same as for Rumex erispus. (Fig. 54.) TALL SORREL Riimex Acetbsa, L. Other English names: Garden Sorrel, Sour Dock. Introduced. Perennial. Propagates by seeds and by rootstocks.. Fig. 54. — Broad- leaved Dock (Rumex ob- tusifolius). X i.. 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 work.. Georgia, Ada Eljiva, 1859-1921. New York : Macmillan