Sasa palmata & Pseudosasa japonica


Photo © : GBNNSS
Broad leaved and Arrow Bamboo 
    • There are more than 1,400 species, distributed across temperate to tropical regions. They are fast-growing perennials, with heights ranging from 15cm in the smaller species to 40m in larger species.
    • Leaves can grow from the stem rings or from leaf-bearing branches. Most bamboo species reproduce through flowering and producing seed once in their lifetime, usually after 12-120 years. They can spread vegetatively, and can form dense monocultures that shade out other plants.

Download N.I.E.A ID guide

Origin and Worldwide Distribution:
  • Many species of bamboo are found in East and Southeast Asia, and on islands in the Indian and Pacific Oceans. Some species of Arundinaria are native to the southern USA.
  • Many species of bamboo have been introduced across the world as ornamental species, and have escaped into the environment. Non-native bamboos are causing issues in France, Germany, the Netherlands, Italy, the UK, Ireland, Canada, the US, Australia, New Zealand, Bolivia, Ecuador, and Argentina.

Potential or Known Impacts:
  • Bamboo crowds out native plants through vegetative reproduction, rapid growth, and leaves forming a thick suppressing litter layer.
  • Some species may be allelopathic, as they may produce chemicals to suppress other plants from germinating or growing further.
  • Bamboo may be difficult to control once introduced and established.

How did it get here?
  • It may be imported as an ornamental species, which has escaped into the environment if not properly contained.

Is it found in Ireland or Northern Ireland?
  • A couple of species have been found in Ireland and Northern Ireland.
  • Arrow bamboo (Pseudosasa japonica) and broadleaf bamboo (Sasa palmata) have been recorded in both countries.

                        Arrow Bamboo - ©harum.koh                                                       Broadleaf bamboo - ©: GBNNSS

You can help by reporting any sightings: 
Methods for Prevention:
  • Report any sightings.
  • Do not plant this species – plant native species instead.
  • Do not take or give cuttings from wild or cultivated plants.
  • Know what you are growing.
  • Never collect plants from the wild.
  • Safely dispose of plants and growing media.

Species Related Files:

Invasive Species Ireland

Invasive Species Ireland