An unusual plant endemic to
northern areas of WA and parts
of the NT. Its appearance is
rather cactus or succulent-like in
that it has no distinctive stems
or leaves but rather flattened,
leaf-like stems (called cladodes)
from which bright yellow,
pea flowers are produced.
The common name is derived
from the holly-like shape of
these cladodes. Depending on
growing conditions, it may vary
in height from 0.5 to 2 m.