Persicaria maculosa

Te Awa Kairangi / Hutt River.<br>Photographer: Jeremy R. Rolfe, Date taken: 06/05/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Te Awa Kairangi / Hutt River north of Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 23/04/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 17/04/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Te Awa Kairangi / Hutt River north of Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 16/04/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Butchers Dam.<br>Photographer: Mike Thorsen, Date taken: 20/04/2014, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

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Common name

willow weed

Synonyms

Polygonum persicaria

Family

Polygonaceae

Authority

Persicaria maculosa Gray

Flora category

Vascular – Exotic

Structural class

Herbs - Dicotyledons other than Composites

NVS code

The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.

POLPER

Features

Stems smooth sometimes hairy, much-branched, 15 to 90 cm tall. Leaves alternate, pointed at both ends, 2.5 to 15 cm long, with smooth edges and usually a dark spot in the middle. Sheath at base of the leaf fringed with short bristles (Wax, Fawcett and Isely 1981).

Flower colours

Red/Pink, White

Year naturalised

1878

Origin

Temperate N. Hemisphere.

Etymology

persicaria: Medieval name referring to the likeness of the leaves to a peach tree

maculosa: From Latin ‘macula’ blotch, meaning full of blotches or mottled

Seed
Seeds almost circular, flattened

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