Spartina hybrid, cordgrass
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.
Aquatic: Emergent. Estuaries, mangroves and other intertidal areas with soft sediment.
Stiff perennial grass 50 to 100 cm tall with fleshy rhizomes, forming large dense clumps or swards. Leaf blades 5-40cm x 5-12mm flat or inrolled, hairless and narrowed to fine hard tip. Culm erect, 5-8mm diameter at base, including closely ensheathing leaves. inflorescence 10-30cm, erect.
Spartina anglica can be distinguished from S. alterniflora by its smaller stem size (5-8mm) (S. alterniflora stem 8-30 mm). And from S. x townsendii by the presence of fertile seed (seed is aborted in S. x townsendii)
Perennial. Reproduces from seed and rhizome spreading and fragments. Seed is dispersed by wind and water. Livestock, propellers nets etc dislodge rhizome fragments, tidal and current movement, intentional planting. Rhizomes can survive long time at sea, moves long distances.
Reason for introduction
Tolerates very saline conditions. Can survive burying.