False Acacia Robinia pseudoacacia
The False Acacia is also known as a Robinia or Locust Tree. In the eastern USA, where it originates, it is known as the Black Locust. It was introduced to Britain in about 1636. This is not a true acacia. The name ‘false acacia’ comes from the idea that the leaves look like a true acacia. It is now planted on city streets and in gardens as an ornamental tree, often as a variety which does not have spines. It has cascades of white flowers in spring, long pinnate leaves, fruit in the form of pods and spines on some trees. Click on any photo to enlarge it.
The leaf has 9 to 23 smooth edged leaflets which are almost, but not quite, opposite one another. This is a pinnate leaf.