Aciphylla crosby-smithii

Species

Aciphylla crosby-smithii

Etymology

Aciphylla: From the Latin acicula 'needle' and the Greek phyllum 'leaf', meaning needle-leaf.

Common Name(s)

None known

Current Threat Status

2012 - At Risk - Naturally Uncommon

Previous Threat Status

2009 - At Risk - Naturally Uncommon
2004 - Range Restricted

Qualifiers

2012 - RR

Authority

Aciphylla crosby-smithii Petrie

Family

Apiaceae

Brief Description

Robust elongate tufts of broad spiky leaves with white flowers in a ball on a long fleshy stalk in southern Fiordland

Flora Category

Vascular - Native

Distribution

Endemic. South Island; southern Fiordland (possibly also in western Otago and elsewhere in Fiordland)

Habitat

Exposed rocky slopes and short snow tussock herbfield. 1400-1600 m a.s.l.

Features

Herb forming stout tufts to 40 cm tall in flower. Rosettes several, crowded, +/- elongate, forming cushionlike mass to 60 cm diam. Leaves many, extending along base of flowering stem, stiff, 1-pinnate; sheath broad, membranous, 4 cm long x 1.5 cm wide, slowly narrowing to apex; stipules similar to pinnae, 35 mm long x 5 mm wide, narrowing to small mucro; leaf with pinnae in 2-3 pairs, petiole and internode (inter-pinnae spacing) short, linear-oblong, c. 3 cm long x 3-4 mm wide, midrib often red, margin slightly thickened, yellow, tapering to pungent mucro. Flowering stem grooved, c. 25 cm long x (2-)4-5 cm wide, upper nude part slender, lower part sheathed by leaves. Inflorescence a globose head of compound umbels; involucral bracts with thick sheaths up to 2 cm long and leaflike stipules and lamina. Primary umbels usually several, c. 2.5 cm diam., secondary umbels on almost filiform rays. Fruit of two mericarps; mericarps narrowly-elliptic to elliptic, 4.0-5.2 mm, with 5 even narrowly winged ribs, 4 smaller ribs on vittae, vittae largely obscured

Similar Taxa

Most similar to A. spedenii and A. congesta, but the leaves extending along the basal portion of the flowering stem is distinctive

Main Flower Colour

White

Other Flower Colour

Cream

Endemic Taxon

Yes

Endemic Genus

No

Endemic Family

No

References and further reading

Allan, H.H. 1961. Flora of New Zealand. Government Printer, Wellington

Mark, A.F; Adams, N.M. 1995. New Zealand alpine plants, 2nd Edition. Godwit Publishing, Auckland

Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 2009 Vol. 11 No. 4 pp. 285-309

Webb, C.J. &  Simpson, M.J.A. 2001. Seeds of NZ gymnosperms and dicotyledons. Manuka Press, Christchurch

This page last updated on 29 Apr 2014

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