Resumo

VIBRANS, Heike  e  HANAN ALIPI, Ana María. Notes on neophytes 4. Polygonum nepalense (Polygonaceae), an invasive plant new for Mexico. Act. Bot. Mex [online]. 2008, n.82, pp.1-6. ISSN 2448-7589.

Polygonum nepalense Meisn. (= Persicaria nepalensis (Meisn.) H. gross), Polygonaceae, of Asia is reported as new to Mexico. Two populations were found in high-altitude areas of the State of Mexico, and they appear to be in expansion. The species is known as an aggressive weed, with high impact on various crops, and also as an invader of natural vegetation. As the invasion seems to be recent and incipient, an eradication effort is recommended.

Palavras-chave : State of Mexico; invasive; Persicaria nepalensis; Polygonum nepalense; weed.

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