Vascular – Exotic
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.
Terrestrial. A plant of coastal, lowland, montane and subalpine habitats (Timmins & MacKenzie 1995). Plant grows in scrub and forest margin, shrubland, tussockland, herbfields, fernland, sand dune hollows and riverbeds (Timmins & MacKenzie 1995).
Wetland plant indicator status rating
FACU: Facultative Upland
Occasionally is a hydrophyte but usually occurs in uplands (non-wetlands).
Hairless, erect, greyish to bluish green, strongly tufted perennial grass to 1 m tall. Roots fibrous. Leaf folded when emerging, 100–450 × 2–14 mm, rough towards boat-shaped tip, harsh when old, dull beneath with prominent sharp keel. Ligule 2–12 mm long, membranous, often torn. Sheath strongly flattened, sharply keeled. Seedhead a large panicle, with one-sided clusters of flattened spikelets. Seeds with bristly ends.
Distinctive large pannicle, with one-sided clusters when mature. May be confused with Poa annua when young but sheath base is flattened in D. glomerata and not in Poa annua.
Perennial. Reproduces by tillars and seed. Seed is dispersed by wind, water, humans and vertebrates (Timmins & MacKenzie 1995).
Eurasia, Nth Africa
Reason for introduction
The plant is slightly tolerant to drought, shade and poor drainage and is frost tolerant (Timmins & MacKenzie 1995). The plant is able to resprout after physical damage and fire (Timmins & MacKenzie 1995).
dactylis: From the Greek dacktyolos ‘a finger’, referring to the shape of the panicle
References and further reading
Timmins SM, Mackenzie IW. 1995. Weeds in New Zealand Protected Natural Areas database. Department of Conservation Technical Series 8. Department of Conservation, Wellington, NZ. 282 p.