Agropyron enysii Kirk, Elymus enysii (Kirk) Á.Löve et Connor, Asprella aristata Petrie, Agropyron aristatum Cheeseman; Australopyrum enysii (Kirk) Connor
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 = 28
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: DP, Sp
Previous conservation statuses
2009 | At Risk – Naturally Uncommon
2004 | Not Threatened
Endemic. South Island only Nelson, then east of the main divide from Marlborough to Canterbury
Montane, subalpine to alpine (up to 1800 m a.s.l.), usually in shaded sites such as in and around boulders under rock overhangs, or in low scrub. Also in flushes within tussock grassland
Tufted, bronze-coloured, flat-leaved grass. Culm slender, drooping, inflorescence often hidden in foliage. Leaf sheath 60-80 mm, covered in long hairs, these retrorse, erect or pubescent. Ligule 0.5-0.75 mm. Leaf-blade 200 x 2-4 mm, flat, soft, upper surface densely retrorse hairy or glabrous, undersides antrorsely prickle-toothed, margin prickle-toothed. Culm 250-800 mm. Inflorescence 50-130 mm, with 10-18 compact spikelets. Spikelets 10-16 mm, shining. Glumes abut equal, narrow 6-9 mm, 1-3-nerved, scabrid, becoming awn-like, margin prickle-toothed. Lemma 7-10 mm, > palea, glaucous, apex bifid, awn 1-3.5 mm, indented at base. Palea 6-9 mm, apex bifid. Rachilla 1-2 mm flared near apex. Callus 0.25 mm blunt, surrounded by minute hairs. Description adapted from Edgar & Connor (2000).
Well marked from other New Zealand wheat grasses, and distinguished from these by the small, close set, few-flowered , glossy spikelets, and bifid palea and lemma apices. Rare, sterile hybrids (Elymus xwallii) are formed between it and Anthosachne solandri.
No information available
No information available
Florets are wind dispersed (Thorsen et al., 2009).
Easy from fresh seed and division of whole plants. Dislikes humid climates and can be tricky to flower at low altitudes.
Not Theatened. However old herbarium specimens suggest that it was once more widespread at lower altitudes, and once grew in more open sites, places which are now dominated by exotic grasses and weeds.
enysii: Named in honour of John Davies Enys (1837-1912), a Cornish geologist, biologist and farmer, who owned Castle Hill Station in Canterbury from 1867 to 1891.
Fact sheet prepared for NZPCN by P.J. de Lange May 2004. Aadapted from Edgar & Connor (2000).
References and further reading
Barkworth, M.E.; Jacobs, S.W.L. 2011: The Triticeae (Gramineae) in Australasia. Telopea 13: 37-56.
Edgar, E.; Connor, H.E. 2000: Flora of New Zealand. Vol. V. Lincoln, Manaaki Whenua Press.
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
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Stenostachys enysii Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/stenostachys-enysii/ (Date website was queried)