A new report published by the JNCC, Royal Botanic Gardens,
Kew, and Plantlife International reviews
Plant Diversity
Challenge, the UK's response to the Global Strategy for Plant
Conservation. This progress report celebrates some of the
conservation success stories and highlights the challenges that lie
ahead for the plant conservation community. The report is available
on the
Plantlife
website.
What is a plant?

Plants form a
distinctive Kingdom of organisms containing chlorophyll.
Within the Kingdom there are vascular plants (flowering plants,
conifers, ferns, horsetails and clubmosses), bryophytes (mosses,
liverworts and hornworts) and green algae. The Kingdom does
NOT include the
fungi and lichens.
Vascular plants are divided into native species (which arrived
in the UK without intervention by man), archaeophytes (which became
naturalised in the UK prior to AD 1500), neophytes (which became
naturalised since AD 1500), and casuals (which are non-native and
not naturalised). The numbers of species in these groups vary
according to whether microspecies are included; the numbers given
in the New Atlas of the British & Irish Flora (2002)
are:
|
Natives
|
1407
|
|
Archaeophytes
|
149
|
|
Neophytes
|
1155
|
|
Casuals
|
240
|
|
Total
|
2951
|
In addition, there are approximately 354 native
Hieracium microspecies, 137 native Taraxacum
microspecies, more than 400 Rubus microspecies, and an
unknown number of microspecies within the Ranunculus
auricomus complex.
There are approximately 1034 native
species of bryophyte present in the UK:
|
Mosses
|
746
|
|
Liverworts
|
284
|
|
Hornworts
|
4
|
|
Total
|
1034
|
The inter-agency group with responsibility for plant
conservation advice is the Plant Conservation Working Group.
A sub-group of this group is the
Plant Conservation Genetics
Working Group. In addition, JNCC and the Country Agencies
play an active role in Plant Link. This group is administered
by
Plantlife, and they should be
contacted for further information.