Chionochloa crassiuscula subsp. directa
None (first described in 1991)
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: RR
Previous conservation statuses
2009 | At Risk – Naturally Uncommon
2004 | Range Restricted
Endemic. New Zealand: South Island (Southland (Longwood Range, Takitimu and Hunter Mountains).
Upper montane to alpine in short scrub, or within poorly drained or boggy grasslands. Often locally dominant.
Short, slender, tussock with long prostrate stems forming large patches. Leaves shining, smooth, mostly straight, acute, deciduous, leaving many imbricate old sheaths. Leaf-sheath to 100 mm, glabrous, often reddish, shining above, darkened below, sometimes purpled or reddened, persistent, entire, compressed, sometimes apical tuft of hairs to 1 mm. Ligule 0.25 mm long. Leaf-blade to 250 × 3 mm, keeled, drawn out into long tapering, thin, straight, often somewhat twisting, pointed apex pungent, conduplicate, disarticulating at ligule, underside glabrous except for prickle-teeth towards apex, adaxially papillate but with some prickle-teeth especially near ligule; margin thickened, long hairs below or sometimes with prickle-teeth. Culm to 500 mm, often purpled, internodes glabrous. Inflorescence to 150 mm, open, pulvinate; spikelets often paired on flexuous branches; rachis, branches and pedicels with mixed long and short hairs or rachis hairy on margins only. Spikelets of up to 7 golden florets. Glumes thin, purpled, acute or mucronate from between teeth or aristate to erose, greater than or equal to adjacent lemma lobes; lower to 12 mm, shortly 1-3-nerved, glabrous, upper to 16 mm, 5-7-nerved, margin often long hairy below otherwise glabrous. Lemma to 5.5 mm, shining; densely hairy only on margin and aside central nerve, < sinus; lateral lobes to 6.5 mm including awn to 3 mm, or triangular-acute or long acute; central awn to 12 mm slightly twisting and markedly reflexed from flat column to 2 mm. Palea to 7 mm. Callus to 1 mm, hairs to 2.5 mm. Rachilla to 1.5 mm. Lodicules to 2 mm. Anthers to 4 mm. Ovary to 0.75 mm; stigma-styles to 3.5 mm. Seed to 3 mm
October - January
December - May
Often difficult. Can be grown from fresh seed and rooted pieces but tend to be very slow growing. Prefers a permanently damp, acidic soil and semi-shade. Plants must never be allowed to dry out.
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.