Classification
Class
Magnoliopsida Brongn.
Order
Ranunculales Juss. ex Bercht. & J.Presl
Family
Ranunculaceae
Genus
Ranunculus L.
 Nomenclature
Scientific Name:
Ranunculus haastii Hook.f., Handb. New Zealand Fl. 6 (1864)
 Description

Tufted perennial, 5–15 cm tall; rhizome stout, creeping. Lvs few, orbicular or reniform, deeply 5-lobed or ternatisect, fleshy, glaucous, 10–25–(35) cm long, glabrous or with silky hairs; lobes either again deeply divided into narrow segments, or rounded and crenate. Fls 1–3–(5) per stem, 2–5 cm diam. Pedicels erect, glabrous. Sepals spreading, glabrous or sparsely hairy. Petals 10–16, yellow, narrow-cuneate; nectary single, 2–4 mm from petal base, naked. Receptacle glabrous. Achenes many, turgid, winged on margins, glabrous; body 3–4 mm long; beak broad, flattened, curved, 3–4 mm long.

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

 Biostatus
Indigenous (Endemic)
 Phenology

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

 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Declining]
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. [Declining]
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. [Declining]
Heenan, P.B; Lockhart, P.J.; Kirkham, N.; McBreen, K.; Habell, D. 2006: Relationships in the alpine Ranunculus haastii (Ranunculaceae) complex and recognition of R. piliferus and R.acraeus from southern New Zealand. New Zealand Journal of Botany 44(4): 425–441.
Hooker, J.D. 1864: Handbook of the New Zealand Flora: a systematic description of the native plants of New Zealand and the Chatham, Kermadec's, Lord Auckland's, Campbell's and Macquarie's Islands. Part I. Reeve, London.