Nomenclature
Scientific Name:
Aciphylla spedenii Cheeseman, Trans. & Proc. New Zealand Inst. 45: 93 (1913 [1912]) – as spedeni
 Description

Stock stout, simple to multicipital, with solitary rosettes, or these forming clumps up to 3 dm. diam. Lvs rather soft, striate, with membr. sheaths ± 8 cm. × 15–20 mm., hyaline-margined. Stipules lflike, ± 6–7 cm. × 2–3 mm., pungent; petioles not > 5 mm. long; lflts subflabellately 5-foliolate, with very short internodes. Pinnae up to 8 cm. × 3 mm., subrigid, coriac., striate; margins and midribs thickened; apices pungent. Stems of male plants stout, up to 15 cm. long excluding ± globose infl. up to 10 cm. diam. Bracts flaccid, with broad membr. sheaths, short linear stipules and lamina of 5–6 pinnules. Umbels several to ∞ on peduncles up to 2.5 cm. long; umbellules without bracteoles. Calyx-teeth minute; petals white, clawed. Female infl. not known.

[From: Allan (1961) Flora of New Zealand. Volume 1.]

 Biostatus
Indigenous (Endemic)
 Bibliography
Cheeseman, T.F. 1912: Some new species of plants. Transactions and Proceedings of the New Zealand Institute 45: 93–96.
de Lange, P.J.; Gosden, J.; Courtney, S.P.; Fergus, A.J.; Barkla, J.W.; Beadel, S.M.; Champion, P.D., Hindmarsh-Walls, R.; Makan, T.; Michel, P. 2024: Conservation status of vascular plants in Aotearoa New Zealand, 2023. New Zealand Threat Classification Series. No. 43. [Naturally uncommon]
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. [Naturally uncommon]
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76.
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. [Naturally Uncommon]
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. [Naturally Uncommon]
Perrie, L.R.; Glenny, D.S.; Shepherd, L.D. 2025: Taxonomic synopsis of Aciphylla (Apiaceae): accepted species, nomenclature, and hybridisation. New Zealand Journal of Botany: 1–41 (online) . (Published online: 21 May 2025 https://doi.org/10.1080/0028825X.2025.2498442)