National Status
- Red-tipped cudweed is a species of light, open soil generally on
extensively managed arable land or other disturbed ground including field
edges, tracks and sandy commons. It is an annual plant which flowers mainly
between July and October. Most seed germination takes place in the autumn,
with a second flush in spring. Observations suggest that there is no innate
seed dormancy, and it seems unlikely that it has a persistent seed-bank,
although this requires further investigation.
- Although once recorded as far north as Yorkshire, the UK range of
red-tipped cudweed has always centred around the south-east of England. It
has suffered a severe decline over the last 50 years, from 212 sites
pre-1930 to just 16 sites today (two of these have not been surveyed since
1994). Its remaining sites are in Hampshire, Surrey, Sussex, Essex,
Cambridgeshire and Suffolk, with the largest populations in Surrey.
Red-tipped cudweed remains relatively widespread in continental Europe,
particularly in central Europe, but appears to be declining throughout its
range.
- In Great Britain, red-tipped cudweed is classified as Vulnerable. It is
specially protected under Schedule 8 of the Wildlife and Countryside Act
1981.
Norfolk Status
- Red-tipped cudweed has been recorded from only five sites since 1950,
and was found at only one site in 1997 (a disused railway line in Snettisham).
A recent (2005) isolated record has been received from Forest Enterprise
land at Weeting Forest near Brandon.
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Current factors causing loss or decline in Norfolk
The following factors were largely responsible for the decline of red-tipped
cudweed and are now proving to be constraints on its recovery:
- Increased use of herbicides and fertilisers;
- The development of highly productive crop varieties;
- The destruction of field margin refuges;
- Earlier summer harvests, destroying plants before they have set seed;
- The demise of traditional crop rotations;
- The conversion of marginal arable land to pasture in traditional areas
of mixed farming;
- Metalling and hard-coring of unmade paths and tracks;
- Possibly the decline in stock and rabbit populations on heathlands,
leading to the loss of beneficial disturbance.
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Current Action in Norfolk
- None specifically for this plant. Plantlife has been involved with this
species in the past, but is not currently active.
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Action Plan Objectives and Targets
National
- Maintain viable populations of this species at all extant sites.
- Achieve an increase in population size at ten extant populations by
2010.
- Establish three metapopulations by 2010.
Norfolk
- Ensure that the population remains viable at the remaining current
sites.
- Provide opportunities for the spread of red-tipped cudweed from extant
sites.
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