- Taxon
- Weed
- Gallery
Recognition
- a clump-forming herbaceous plant usually growing up to 80 cm tall.
- its stems are oval in cross-section and are usually winged.
- its long and narrow leaves (10-60 cm long and 5-11 mm wide) are mostly clustered at the base of the plant.
- its branched flower clusters are borne and the tips of the stems and produce numerous bright blue flowers.
- these short-lived flowers have six 'petals' and only open for a few hours in the morning.
- its oblong capsules (12-20 mm long) have three compartments and contain numerous brown seeds.
[From: Environmental Weeds of Australia]
References
Biosecurity New Zealand 2012: Regional Pest Management Strategies Database. http://www.biosecurityperformance.maf.govt.nz/
Biosecurity New Zealand 2008: National Plant Pest Accord. MAF Biosecurity New Zealand, Wellington.
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.
Ministry for Primary Industries 23 Feb 2017: Unwanted Organisms Register. Version 02.01.02. https://www1.maf.govt.nz/uor