Alexis wrote today’s entry:
A genus within Rhamnaceae, Colletia consists of about 17 thorny shrub species that are all native to South America. They are cultivated for ornamental use.
Colletia paradoxa, commonly known as anchor plant, naturally occurs in Brazil, Argentina and Uruguay. Though quite slow growing, the plant is able to reach a total height of 1.8m (6ft) (ref: The Firefly Encyclopedia of Trees and Shrubs (2001)). Its yellow-white flowers are said to smell like almonds and bloom in September to October. In place of leaves, Colletia paradoxa has triangular flattened stems called cladodes, which both perform photosynthesis and possess spines to discourage herbivory.