Acaena saccaticupula or New Zealand Burrs are very easy to grow alpine perennials that make an excellent ground cover.
This variety forms a low mat of steely, fern shaped leaves and produce greenish flowers on short stems in summer. These are followed by pretty mahogany coloured, burr-like fruits in autumn.
They go well as ground covers beside pathways, in rock gardens, or as a foliage contrast in larger planters or tubs with spring bulbs for an eye catching display
They will be evergreen in regions with milder winter.