The rugged but incomparably beautiful
southwestern corner of the African continent is home to
Fynbos (Dutch for ‘fine bush’). Here it forms
the major vegetation type of the world’s smallest
botanical region, known as the Cape Floral Kingdom. The
other five recognised floral kingdoms cover huge areas
- even entire continents. By contrast Fynbos only covers
the mountains, valleys and coastal plains of southwestern
South Africa. Existing between roiling ocean on the one
side and the arid desert and semi-desert interior of South
Africa on the other Fynbos is highly adapted to local
growing conditions. So it comes as little surprise that
the Cape floral kingdom is not only the world’s
smallest but also its richest floral kingdom, with the
highest known concentration of plant species in the world:
1 300 per 10 000 km2.
This is more than 3 times the concentration found in the
Amazon rain forest!
Fynbos consists of a cornucopia of
woody plants (almost all with small leathery leaves -
hence the name), herbs, bulbs, Cape reeds, proteas, ericas
and members of seven plant families found nowhere else
in the world. Interestingly true grasses are rare. Of
the over 7700 plant species in the Cape floral kingdom
more that 70% are endemic, i.e. occurs nowhere else in
the world. In part this is the result of a large number
of species having very small distribution ranges. Indeed
for many fynbos plants their entire world range is smaller
that a football field! Fynbos plants include the majestic
King Protea (Protea cynaroides), SA’s national flower,
the elegant Red Disa (Disa uniflora), the symbol of the
Western Cape province, and many garden plants known throughout
the world, ranging from pelargoniums to watsonias.
The soils on which Fynbos thrives
are nutrient poor and thus Fynbos does not provide sufficient
protein for large mammals. Several smaller mammals are
however found the best known of which is probably the
chacma baboon. The Fynbos region is not bird rich, nevertheless
there are six bird species that occur only here. Fynbos
also supports many butterfly species, more than half of
SA’s frog species, the world’s second rarest
tortoise and several threatened fish species.
Several factors threaten the Cape’s
Fynbos. The biggest of these is the spread of alien plants.
Other significant threats include too frequent fires and
fires in the wrong season (Fynbos requires occasional
fires to regenerate, with some species only flowering
after fires), the growth of forestry plantations and commercial
housing and agricultural development. The survival of
many Fynbos plants are today seriously threatened and
almost thirty have already become extinct.