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Cerastium semidecandrum

Details of sepal, Wanganui.<br>Photographer: Colin C. Ogle, Date taken: 08/11/2015, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Note the pedicel is longer than the sepals, Wanganui.<br>Photographer: Colin C. Ogle, Date taken: 08/11/2015, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Stem and leaf detail, Wanganui.<br>Photographer: Colin C. Ogle, Date taken: 08/11/2015, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

West Melton, Christchurch.<br>Photographer: Melissa Hutchison, Date taken: 29/10/2023, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>

Cerastium semidecandrum.<br>Photographer: Mike Thorsen, 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>

Cerastium semidecandrum, Nevis Valley, Otago.<br>Photographer: Mike Thorsen, Licence: All rights reserved.

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Common names

little mouse ear chickweed

Biostatus

Exotic

Structural class

Herbs - Dicotyledons other than Composites

Simplified description

Small annual herb; stem leaves sessile, hairy. Flowers with petals < sepals; sepal hairs glandular but not reaching sepal tip. Pedicels elongating at fruiting stage, longer than the sepals and with glandular hairs.

Flower colours

White

Conservation status

Not applicable

Detailed taxonomy

Family

Caryophyllaceae

Authority

Cerastium semidecandrum L.

Ecology

Flowering

Oct-Nov

Year naturalised

1968

Origin

Europe, Asia Minor

Other information

Etymology

cerastium: From the Greek keras ‘horn’, referring to the seed capsules of some species looking like horns are they emerge from the calyx.

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.

CERSEM

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