Classification
Class
Magnoliopsida Brongn.
Order
Rosales Bercht. & J.Presl
Family
Rosaceae
Genus
Acaena Mutis ex L.
 Nomenclature
Scientific Name:
Acaena caesiiglauca (Bitter) Bergmans (1939)
Synonymy:
  • ≡ Acaena sanguisorbae subsp. caesiiglauca Bitter, Biblioth. Bot. 74: 269 (1911)
  • = Acaena sanguisorbae var. pilosa Kirk, Stud. Fl. New Zealand 133 (1899)
  • ≡ Acaena caesiiglauca var. pilosa (Kirk) Allan, Fl. New Zealand 1, 360 (1961)
Vernacular Name(s):
bidibid; Glaucus bidibid
 Description

Stoloniferous perennial; prostrate stems 1–2 mm diam., < 30 cm long; erect stems 1–2 mm diam., < 4 cm long. Lvs 2–10 cm long; stipules entire or 2-fid; leaflets 7–11, broadly obovate, 5–12 × 3–8 mm, 7–10-toothed, with lower ⅓ of margin entire, glaucous and hairy on both surfaces, rugose on upper surface; teeth penicillate, often red. Scape (7)–20 cm long, pilose; capitulum c. 10 mm diam. at flowering, < 2 cm diam. (including spines) at fruiting; florets c. 50–70; sepals 4; stamens 2; anthers white; style 1, white; achene 1. Fr. obconic, c. 4 × 2 mm, densely hairy; spines 4, pale brown, < 7.5 mm long, barbed.

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

 Biostatus
Indigenous (Endemic)
 Phenology

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

 Bibliography
Bitter, G. 1911: Die Gattung Acaena. Vorstudien zu einer Monographie. Bibliotheca Botanica 74: 249–336.
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]
Kirk,T. 1899: The Students' Flora of New Zealand and the Outlying Islands. Government Printer, Wellington, N.Z.