Class
Order
Family
Genus
Classification
Nomenclature
Scientific Name:
Lachnagrostis glabra (Petrie) Edgar, New Zealand J. Bot. 33: 20 (1995)
Synonymy:
- ≡ Deyeuxia glabra Petrie, Trans. & Proc. Roy. Soc. New Zealand 46: 36 (1913 [1914])
Description
Lax, partly sprawling and stoloniferous perennials, 18–35 cm, with sparse, narrow, soft, bright green leaves; branching extravaginal. Leaf-sheath membranous, distinctly ribbed, glabrous. Ligule 3–5 mm, oblong, erose, abaxially finely scabrid. Leaf-blade 4–15 cm × 1.5–2.5 mm, flat, thin, abaxially smooth, adaxially finely scabrid on ribs; margins finely scabrid, tip fine, subacute. Culm 7–25 cm, usually included within uppermost leaf-sheath, internodes finely scabrid below panicle. Panicle 5–20 × 1–6 cm, contracted, later spreading; branches filiform, finely scabrid, bearing few spikelets towards tip on long delicate pedicels. Spikelets 3–3.8 mm, light green. Glumes subequal, ovate-elliptic, rarely with scattered prickle-teeth near scabrid midnerve; margins hyaline, scabrid near acute tip. Lemma 1.8–2.5 mm, ± ⅔ length of glumes, faintly 3–5-nerved, glabrous, apex ± truncate and erose, lateral nerves hardly excurrent; awn 0–1.2 mm, straight, from just below lemma apex. Palea ≈ lemma, nerves very close set, apex hardly bifid. Callus hairs few, c. 0.1 mm or 0. Rachilla prolongation 0.3–0.5 mm, tipped by a few hairs to c. 0.8 mm. Lodicules linear, acute. Anthers 0.5–0.9 mm. Caryopsis not seen.
[From: Edgar and Connor (2000) Flora of New Zealand. Volume 5 (second printing).]
Biostatus
Indigenous (Endemic)
Bibliography
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. [Data Deficient]
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. [Data Deficient]
Edgar, E. 1995: New Zealand species of Deyeuxia P.Beauv. and Lachnagrostis Trin. (Graminieae: Aveneae)*. New Zealand Journal of Botany 33: 1–33.
Petrie, D. 1914 ("1913"): Descriptions of New Native Phanerogams. Transactions and Proceedings of the Royal Society of New Zealand 46: 32–39.
