Acaena inermis 'Purpurea', purple biddy biddy, bidibidi, or piripiri. It is a cultivated form of the endemic species Acaena inermis which is found in the South Island. It is a compact and hardy herbaceous groundcover with a one metre spread. It has a good tight habit and unlike most species of Acaena, it doesn't have barbs on the spines of its seed-heads. It likes a sunny or shady, moist position, and its attractive deep purple leaves creates a mass makes it an effective groundcover or ideal for a rock garden.
Feed with a slow release fertiliser to attain the best foliage colour.