Hectorella caespitosa forms cushions up to 8 in (20 cm) across. The small green leaves are arranged in a tight spiral. The flowers are carried in rosettes just above the foliage.
Hectorella caespitosa is found in high alpine fellfields and cushion vegetation southwards from Arthur’s Pass, South Island, New Zealand. It was named after Sir James Hector, FRS, (1834–1907).