Acaena caesiiglauca is a stout, evergreen perennial which forms large patches up to 40 in (1 m) across. The blue-grey leaves comprise 7–9 leaflets, and are 1.4–2 in (3.5–5 cm) long. Whitish flowers on stalks, summer; seedheads brownish on ripening. Hardy in the UK.
Acaena caesiiglauca is found in mountainous areas and subalpine tussock grasslands, east of the Southern Alps, South Island, New Zealand.