### plant | tracheophyte | tree:

Acacia
* All acacia are monoecious , meaning they asexually reproduce
  - acacias have leaves, which are usually compound pinnate
* Many acacias grow in tropical and subtropical regions of Australia, Africa, and the Americas.
* Most acacias grow in environments.
* Most acacias have invasive tendencies
  - make toxins that it rushes to leaves that are under attack by browsers
* Most acacias produce flowers
* Some Acacias are amongst the most spectacular flowering native plants
  - acacias are very sensitive to high levels of phosphorous in the soil
* Some acacias have branches
  - legs
  - stamens
  - thin branches
  - plant in parks
  - use tannin to protect themselves.
  * The main defense is provided by pairs 5cm long arranged nearly at a right angle. Smaller stipular spines grow between the pairs of big thorns. These emerge from hollow galls, bulbous swellings 2 to 3cm across. One of four different species of ant lives in each of these igloos, which they open up by cutting holes into them. A dying bush whistles as the wind blows over these entrances. Most acacias make toxins that it rushes to leaves that are under attack by browsers. The whistling thorn does not. It is infested with stinging ants that swarm out and prepare to bite anything they can when the branch is disturbed. Most browsers seem to avoid infested bushes, perhaps because the ants stink of formic acid
* also occur in Africa, South America and throughout other warm areas of the world.
* angustissima a Central American tree that's going places.
* are a nearly perfect food for giraffes
  - among the trees that figure into the reproduction strategy of wildebeest bulls
  - especially numerous on the plains of southern and eastern Africa
  - generally short-lived
  - legumes
  - members of a pod-bearing family of plants that thrive in dry regions around the world
  - one of the largest and most diverse groups of trees and shrubs on earth
  - safe and fast burning
  - thorny trees that grow in the new world tropics
  - very useful in horticulture for landscaping, garden and specimen plants
  - woody plants
* grows on well-drained soil, in dry and sunny habitats.
* includes bark
  - cytoplasm
  - vacuoles
  - xylem
* usually obtain usable nitrogen in both ways.

Acacia tree
* All acacia trees have thorns.
* Many acacia trees have sharp thorns.
* Most acacia trees develop leaves
  - have structures
  - provide homes
* Some acacia trees benefit from fertilizer
  - have defense
* are common in Israel and thrive in the arid climate
  - keystone species of drylands
* kill antelope in the Transvaal.
* thorns house stinging ants who live off the tree's nectar.

### plant | tracheophyte | tree | acacia:

Australian acacia
* Some australian acacias have capacity.
* are generally small to large shrubs but there are a few which become large trees.

Cassie
* is allergic to chocolate
  - the smallest and youngest of the dragons
* petite person, who had shown no prior athletic interest or proclivity.
* professional photographer specialising in portraiture.
+ Cassie (Skins character), Personality: Fictional British people :: Fictional people with mental disorders :: Television characters
  * Cassie is a very complicated character.

Willow acacia
* Some willow acacias have branches
* is an evergreen tree that grows in a tall, upright single-trunk form.
* makes a fine, drought-tolerant tree for space restricted areas.

Affected tree
* decline for one to three years before death occurs.
* exude amber-coloured gum from the bark.
* grow at a slower rate and are more susceptible to attack by bark beetles.
* have very sparse root systems with few fine, white roots.
* show bark decay, gummosis of the collar and stem collars causing dieback of branches.
* tend to have sparse foliage at the bottom of the tree going into winter.

African baobab tree
* produce aromatic flowers
* store water.