(2) Other desert plants, mainly succulents, build up a widespread net of roots just
beneath the surface. That way they absorb the moisture that forms on the surface in
the morning (dew) or during a short rain shower quickly, and store it in thicker leaves
or roots. These internal reservoirs allow them to survive even several dry years in a row.
They normally have no real leaves.
(3) The third group are very fast growing plants that flourish only a few days after a
greater rainfall, to immediately spread their seeds again. Those seeds then stay in the
dry ground for years to awaken with the next rain and start the circle again. A mechanism
inside the seed each time decides whether the amount of water that has fallen on it is
enough to sprout or not. Those plants form the wonder of the »blooming desert«.
Plants are the true survival artists of desert and semi-desert areas. Due to their
inability to move and, like animals, search for a place with better conditions, they
had to develop qualities to use the available water most effectively and reduce the
amount of moisture they need to survive. The Kalahari and the Namib together are the
worlds oldest desert. Therefore some of the plants with the most miraculous behaviours
live here. Considering the behaviour Namibias desert plants can be categorised in three major
groups:
(1) Woody desert plants try to reach ground water or subsurface reservoirs with long
tap-roots, that an go to a depth of more than 30m. That way they are generally independent
from surface water sources and are mainly found in dried out river valleys or dips,
where water gathers during rainfall and oozes into the ground. To reduce the loss of
moisture through evaporation, they only have small leaves which they sometimes drop.
Population |
|
Habitats |
|
|
|
|
|
|
Namib aloes |
often |
|
whole farm area |
|
Narras |
often |
|
whole farm area |
|
Quiver Tree |
spread |
|
Old Valley, C. Plains |
|
Ringwood Tree |
rare |
|
whole farm area |
|
Shepherd's Tree |
rare |
|
whole farm area |
|
Stink-Bush |
spread |
|
whole farm area |
|
Tall Common Corkwood |
rare |
|
whole farm area |
|
Water Thorn |
rare |
|
whole farm area |
Population |
|
Habitats |
|
|
|
|
|
|
Black Thorn |
rare |
|
whole farm area |
|
Buffalo-Thorn |
rare |
|
whole farm area |
|
Bushman Gras |
widespread |
|
whole farm area |
|
Camel Thorn |
spread |
|
whole farm area |
|
Common Corkwood |
rare |
|
whole farm area |
|
Devil's Thorn |
widespread |
|
Old Valley, Plateau |
|
False Ebony Tree |
rare |
|
whole farm area |
|
Milk Bush |
widespread |
|
Plateau |