Persicaria wallichii

Greuter & Burdet

Willdenowia 19: 41. 1989.

Common names: Himalayan knotweed Kashmir plume
Introduced
Basionym: Polygonum polystachyum Wallich ex Meisner in N. Wallich, Pl. Asiat. Rar. 3: 61. 1832,
Synonyms: Aconogonon polystachyum (Wallich ex Meisner) M. Král Pleuropteropyrum polystachyum (Wallich ex Meisner) Munshi & G. N. Javied Reynoutria polystachya (Wallich ex Meisner) Moldenke Rubrivena polystachya (Wallich ex Meisner) M. Král
Treatment appears in FNA Volume 5. Treatment on page 581. Mentioned on page 481, 574.

Distribution

V5 1190-distribution-map.gif

B.C., Calif., Mass., Oreg., Asia.

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.

Selected References

None.

... more about "Persicaria wallichii"
Harold R. Hinds† +  and Craig C. Freeman +
Greuter & Burdet +
Polygonum polystachyum +
Himalayan knotweed +  and Kashmir plume +
B.C. +, Calif. +, Mass. +, Oreg. +  and Asia. +
Willdenowia +
Introduced +
Aconogonon polystachyum +, Pleuropteropyrum polystachyum +, Reynoutria polystachya +  and Rubrivena polystachya +
Persicaria wallichii +
Persicaria sect. Rubrivena +
species +