The terraces of the north side of the New Zealand flora plantings are smothered in a mat of piri-piri burr, as close hugging as cling film!
The leaves comprise pairs of blue-grey leaflets and one terminal leaflet, all attractively notched. Through this dense cover arise thousands of stiff stalks topped with the globose seedheads, each individual seed sporting a pink barb that gives the whole plant a rosy glow in the afternoon sun.