Classification
Class
Magnoliopsida Brongn.
Order
Rosales Bercht. & J.Presl
Family
Rosaceae
Genus
Acaena Mutis ex L.
 Nomenclature
Scientific Name:
Acaena dumicola B.H.Macmill., New Zealand J. Bot. 23: 338-340 (1985)
 Description

Stoloniferous perennial; prostrate stems 1 mm diam., < 30 cm long; erect stems 1 mm diam., < 5 cm long. Lvs 1.5–7 cm long; stipules entire or 2–3–(5)-fid; leaflets 7–9; distal 3 leaflets suborbicular, 5–10–(20) × 4–10–(15) mm, 11–15-toothed, pale subglaucous on both surfaces, sparsely hairy on upper surface, silvery with appressed hairs on lower surface; teeth acute, not deeply incised, often red-brown; basal leaflets remote, much reduced in size or linear. Scape (5)–7–10 cm long, pilose; capitulum 7–9 mm diam. at flowering, 10–15 mm diam. (including spines) at fruiting; florets c. 40; sepals 4; stamens 2; anthers white; style 1, white; achene 1. Fr. obconic, c. 2 × 1.5 mm, hairy; spines 4, pale brown, c. 4 mm long, barbed.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Nov.–Dec.; Fruiting: Jan.–Feb.

 Bibliography
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Not Threatened]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Not Threatened]
Macmillan, B.H. 1985: Acaena dumicola (Rosaceae) - a new species from New Zealand. New Zealand Journal of Botany 23: 337–340.