Beddie’s tussock, Cook Strait tussock
Vascular – Native
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
2n = 42
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley.
2012 | At Risk – Naturally Uncommon | Qualifiers: PD, RR, Sp
Previous conservation statuses
2009 | At Risk – Naturally Uncommon
2004 | Range Restricted
Endemic. New Zealand: North Island (South Wellington Coast from about the Orongorongo River east to White Rock east of Cape Palliser).
Coastal and lowland. Usually on coastal bluffs, cliffs, talus slopes and sparsely scrub-covered promontories, occasionally extending for short distances inland
Short, shiny tussock with stiff and widely spreading shoots and persistent leaves. Leaf-sheath to 150 mm, slightly keeled, pale yellow, persistent, becoming fibrous, margins above with long hairs, apical tuft of hairs to 2 mm. Ligule to 0.5 mm. Leaf-blade to 600 × 4 mm, flat to U-shaped, persistent, deflexed at collar, abaxially glabrous, adaxially with a weft of short hairs at base, abundant prickle-teeth above; margin with long hairs below, becoming shaggy, hairs mostly antrorse and appressed. Culm to 750 mm, internodes glabrous except for short, dense hairs below inflorescence. Inflorescence to 150 mm, congested with short branches, bristling with awns; rachis, branches and pedicels short soft hairy. Spikelets of up to 5 florets. Glumes to 13 mm, shortly awned, < adjacent lemma lobes, prickle-teeth above, otherwise glabrous; lower 1-3-nerved, upper 1-5-nerved. Lemma to 6 mm; hairs dense at margin and in all internerves, or sometimes only aside central nerve, > sinus; lateral lobes to 11 mm including strict awn to 8 mm, prickle-teeth adaxially and abaxially and on lemma margins; central awn to 22 mm much deflexed from twisting column to 4 mm. Palea to 8.5 mm, produced into two conspicuous narrow processes; prickle-teeth abaxially above. Callus to 1 mm, hairs to 5 mm. Rachilla to 1 mm. Lodicules to 1.75 mm. Anthers to 4.5 mm. Ovary to 1 mm; stigma-styles to 4 mm. Seeds to 3 mm
November - December
December - May
Florets are wind dispersed (Thorsen et al., 2009).
Can be difficult. Best grown from fresh seed. Plants should be planted where they are to grow as they resent much root disturbance. Best in full sun, in a freely draining soil or on a stone wall. Dislikes humidity.
Not Threatened. Listed because it is a naturally uncommon, regional endemic.
chionochloa: Snow grass
Where To Buy
Not Commercially Available.
Description modified from Edgar and Connor (2000).
References and further reading
Edgar, E.; Connor, H.E. 2000: Flora of New Zealand. Vol. V. Grasses. Christchurch, Manaaki Whenua Press. 650 pp.
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 11: 285-309