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5. Persicaria meisneriana (Chamisso & Schlechtendal) M. Gómez, Anales Inst. Segunda Enseñ. 2: 278. 1896.
Mexican tearthumb
Polygonum meisnerianum Chamisso & Schlechtendal, Linnaea 3: 40. 1828
Varieties 2 (1 in the flora): se United States, Mexico, West Indies, Central America, South America, se Africa.
Variety meisneriana has leaves with petioles 0.3-1 cm, blades prominently sagittate to hastate at bases, and ocreae usually moderately to densely pubescent. It is found only in South America (Argentina, Brazil, Paraguay).
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