Persicaria wallichii |
Persicaria meisneriana |
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garden knotweed, garden smartweed, Himalayan knotweed, Kashmir plume |
Mexican tearthumb |
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Persicaria wallichii |
Persicaria meisneriana |
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Distribution |
CA; MA; OR; BC; Asia
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FL; GA; LA; SC; TX; Mexico; Central America; South America; West Indies; se Africa |
Discussion | Varieties 2 (1 in the flora). Persicaria wallichii is an ornamental that escapes infrequently in the flora area. A population in Nova Scotia apparently was ephemeral. Plants with leaf blades sparsely to densely pubescent abaxially and pedicels glabrous are var. wallichii, to which naturalized North American plants appear to be referable. Plants with leaf blades brownish-tomentose abaxially and pedicels usually pubescent are var. tomentosa S. P. Hong, which may be in cultivation in North America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (1 in the flora). 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). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 581. | FNA vol. 5, p. 578. |
Parent taxa | Polygonaceae > subfam. Polygonoideae > Persicaria > sect. Rubrivena | Polygonaceae > subfam. Polygonoideae > Persicaria > sect. Echinocaulon |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Polygonum polystachyum, Aconogonon polystachyum, Pleuropteropyrum polystachyum, Reynoutria polystachya, Rubrivena polystachya | Polygonum meisnerianum |
Name authority | Greuter & Burdet: Willdenowia 19: 41. (1989) | (Chamisso & Schlechtendal) M. Gómez: Anales Inst. Segunda Enseñ. 2: 278. (1896) |
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