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Polygonum amphibium, Linn. (Persicaria amphibia, S. F. Gray). Much spreading and creeping, rooting at the joints, at first more or less pubescent but becoming glabrous with age: lvs. rather thickish and large, oblong, elliptic or lance-elliptic, mostly obtuse or very nearly so; sheaths short, usually not fringed or bordered at the summit: fls. light rose-colored, in a short, dense, terminal spike, the stamens 5 and exserted, and the achene lenticular. In water or bogs, across the continent, and useful for planting in similar places.— When growing in water, the floating lvs. become long- petioled. Var. Hartwrightii, Bissell (P. Hártwrightii, Gray). Differs from the last in having many narrow- lanceolate lvs., bordered and fringed sheaths, and hispid sts., but the distinguishing mark is the foliaceous border on the sheath. Muddy places, across the continent.
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#REDIRECT [[Persicaria amphibia]]
#REDIRECT [[Persicaria amphibia]]
