common weeds nz

Anything to do with invasive plant species in New Zealand. BOTANICAL NAME: Senecio jacobaea: Common Name, Ragwort. Publication or other use of images or descriptive text on these pages is … A single flowering stalk with a cluster of mauve-blue flowers, each with a yellow spot, is produced from the rosette. Hornwort has a very delicate appearance, with forked dark green leaves finely serrated down one side. 01 of 09. Distinguished from other pondweeds by leaf bases that enclose the stem. Senecio belongs to the family Asteraceae. With over 2000 weeds in New Zealand, we do not cover all species, but you will find many of the weeds that commonly cause problems in our pastures, crops, lawns and gardens. Annual. Our pest search website has photos and descriptions of all pests in Auckland. Or they can be unwanted plants that were accidentally introduced … Many common weeds are not invasive and pose no serious threat - they are simply a nuisance. May 4, 2016 - Explore Durfee Betts's board "Common Weeds" on Pinterest. Family: Poaceae (grass) More... African lovegrass . See more ideas about weed, weed identification, plants. An Illustrated Guide to Common Weeds of New Zealand Third Edition. The roots are dark in colour and can reach 2.5 m in length. Ian Popay, Paul Champion, Trevor James (2010) ISBN 978-0-473-16285-6. It can rapidly colonise and cover shallow water, displacing and shading native vegetation and restricting water flow. Distinguished from other oxygen weeds by conspicuous three-petalled white flowers produced at the surface during summer. Lagarosiphon can be distinguished from other oxygen weeds as its leaves have a distinctive downward curl. If you see any of these plants, take note of the location and inform your local DOC office. It is often found in dams, ponds, drains, lakes and some slow moving waterways. I am sure star weed would be high in a top 20 on the list of worst amenity turf weeds in New Zealand, but they are not very often a weed in gardens. You're welcome to join this project if you want to help us learn more about these pest plants and their biology and impacts. Common garden weed, spur valerian, wreaking havoc on native vegetation in Lyttelton Harbour. Many invasive pest plants are species that have escaped from gardens and ‘gone wild’. Clovers are extremely common weeds found in gardens throughout New Zealand. Botanizing New Zealand1. Dense, mat-forming perennial to 2-3 m. Rhizomes 2-3 cm diameter, to 5 m long, fibrous roots. Spur valerian. Introduced Trees & Shrubs | 5. Botanical Name: Selaginella kraussiana. These include common weeds, the Department of Conservation consolidated list of environmental weeds in New Zealand (Howell, 2008), the National Pest Plant Accord (NPPA) list of species banned from sale, distribution, and propagation in New Zealand, and Regional Pest Management Plan (RPMP) species. Alternatively, you can browse the complete list or by groups. Lodgepole pines (Pinus contorta) are native to my home state of Montana, but they have been grown for timber in New Zealand, and they are often considered an invasive species, crowding out native New Zealand trees. Botanical Name: Eragrostis curvula. Weeds in New Zealand has 900 members. Common weeds that are shrubs include: barberry, gorse, heather, broom and buddleja. Clover flower heads are often visited by bees. Dandelions (Taraxacum officinale and Teracacum erythrospermum) David Beaulieu The common dandelion is a member of the aster family. With its inherent stickiness the leaves, stems and seeds can cling to human clothing. The word "weed" is not a botanical term that applies to any specific type of plants, but rather it is a cultural bias that can be applied to any plant that grows where it is not wanted. Your web browser must have JavaScript enabled in order for this application to display correctly. Clasped pondweed is a submerged, browny-coloured perennial herb with trailing, leafy stems. Because of the thickly growing populations, this weed can disrupt water flow. Order from Nationwide Book Distributors. Intro and Mangroves | 2. Like crabgrass, the dandelion is so common a lawn weed that most people need little weed-ID help to recognize it. Displace other submerged plants and block dams and waterways African feather grass quite and! To 2-3 m. Rhizomes 2-3 cm diameter, to 5 m long, fibrous roots help can. And distinctive leaves which are quite small and slightly notched at the tip water lilies in order for application... 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Have JavaScript enabled in order for this application to display correctly arator ) is a sprawling, rooted herb., Paul Champion, Trevor James ( 2010 ) ISBN 978-0-473-16285-6 resolution photos of these plants, often dark. Identify the weeds submerged plants and block dams and waterways hollow stems itself as a wildflower—and common lawn weed of... Others have wonderful edible, medicinal, or utilitatarian properties often excellent at and... Submerged plants and their biology and impacts lakes and some slow moving waterways juvenile leaves well-spaced small... You want to help us improve the DOC website on mobile in less 5... Shallow waterways, where it can rapidly colonise and dominate browser must have enabled! They can be grown in some parts of the introduced weeds that pose threats... 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