. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 766 MANUAL OF POISONOUS PLANTS staminate borne in spikes surrounded by the larger bract-like leaves; the in- volucre is turbinate to ovoid, S-7-ribbed, beaked, each rib bearing a tubercle near the summit; the involucre enclosing a single achene. Distribution. The greater ragweed is distributed from Quebec to Florida throughout the Atlantic region to Texas, common throughout the Mississippi Valley west to Colorado and Northwest Territ

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. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 766 MANUAL OF POISONOUS PLANTS staminate borne in spikes surrounded by the larger bract-like leaves; the in- volucre is turbinate to ovoid, S-7-ribbed, beaked, each rib bearing a tubercle near the summit; the involucre enclosing a single achene. Distribution. The greater ragweed is distributed from Quebec to Florida throughout the Atlantic region to Texas, common throughout the Mississippi Valley west to Colorado and Northwest Territory, in Manitoba and Saskatch- 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 Pammel, L. H. (Louis Hermann), 1862-1931. Cedar Rapids, Ia. , The Torch Press

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Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectpoisonousplants