. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. SPERMATOPHYTA—POIvYGONACEAE 423. Fig. 201. Water Pepper (.Polygonum Hydro- piper). Troublesome to sheep. (After Hoch- stein.) mostly greenish; stamens 4 or sometimes 6; ochreae cylindrical, fringed with short bristles; style short, 2-3 parted; achene lenticular or 3-angled, dull, granular. Poisonous properties. This species and the door yard knot weed (P. avi- culare) are said to be troublesome to sheep CENTROSPERMAE Herbs mostly wit
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. SPERMATOPHYTA—POIvYGONACEAE 423. Fig. 201. Water Pepper (.Polygonum Hydro- piper). Troublesome to sheep. (After Hoch- stein.) mostly greenish; stamens 4 or sometimes 6; ochreae cylindrical, fringed with short bristles; style short, 2-3 parted; achene lenticular or 3-angled, dull, granular. Poisonous properties. This species and the door yard knot weed (P. avi- culare) are said to be troublesome to sheep CENTROSPERMAE Herbs mostly with perfect flowers; calyx present; corolla, when present, polypetalous; ovary superior; perisperm present; embryo coiled, curled or an- nular; fruit not an achene. Generally fleshy plants, many found in saline soils. It includes the families Chenopodiaceae, Amaranthaceae, Nyctaginaceae, Phy- tolaccaceae, Caryophyllaceae, Portulacaceae and others. The last named contains the garden pussley (Portulaca oleracea), the moss pink ( P. grandiflora), and the bitter root (Lewisia rediviva). The family Aisoaceae also of this order, contains the New Zealand spinach {Tetragonia expansa), and the ice plant. 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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