Cenchrus purpureus
Common names
elephant grass
Biostatus
Exotic
Category
Vascular
Structural class
Grasses
Simplified description
Very large perennial grass, with 20–30 mm wide leaf blades. Inflorescence a simple spike-like panicle, involucral bristles plumose.
Detailed description
Robust tufted perennial grass to 3 m or more. Rhizome 6 mm diameter. Leaf-blade up to 75 cm × 3 cm, flat with numerous fine appressed hairs. Culm internodes with fine hairs for some distance below inflorescence. Panicle 14 × 2 cm, cylindric and spike-like.
Habitat
Terrestrial.
Conservation status
Not applicable
Detailed taxonomy
Family
Poaceae
Synonyms
Pennisetum purpureum Schumach.
Ecology
Year naturalised
1990
Origin
Tropical Africa
Reason for introduction
Ornamental
Tolerances
Tolerates a range of conditions (0–500 m), but killed by frost. Drought resistant.
Life cycle and dispersal
Perennial. Reproduction mainly vegetative.
Other information
Etymology
cenchrus: From the Greek cenchros which means millet
National Pest Plant Accord species
This plant is listed in the 2020 National Pest Plant Accord. The National Pest Plant Accord (NPPA) is an agreement to prevent the sale and/or distribution of specified pest plants where either formal or casual horticultural trade is the most significant way of spreading the plant in New Zealand. For up to date information and an electronic copy of the 2020 Pest Plant Accord manual (including plant information and images) visit the MPI website.
Environmental Weed (2024)
This plant is named in a list of 386 environmental weeds in New Zealand 2024 prepared by DOC. 759 candidate species were considered for inclusion on this new comprehensive list of environmental weeds in New Zealand. The species considered were drawn from published lists of weed species, lists of plants that must be reported or managed by law if observed, existing national and regional programmes and agreements for pest management, and species already managed by the Department of Conservation (DOC). Candidate species were then assessed to see if they were fully naturalised and whether they have more than minor impacts in natural ecosystems. Read the full report here.
NVS code
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.
CENPUR