Ageratina adenophora
Crofton weed
Crofton weed is a rapid-spreading weed that has become a nuisance in many areas along the eastern coast of Australia. It is particularly invasive on cleared land that is not grazed, such as public reserves, and causes particular problems for horse owners. A member of the Asteraceae or daisy family, Crofton weed is a native of Mexico. It is present as a weed in India, Sri Lanka, the Canary Islands, Jamaica, mainland United States, Hawaii, Fiji, New Zealand and Australia. Since its escape from ornamental cultivation in Australia about 1900, it has become widespread in Queensland coastal areas, on the [...]
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Nassella neesiana
Chilean needle grass
Chilean needle grass, named for its long, pointed seeds, is a perennial tussock forming grass which grows in dense clumps to one metre high. It is closely related to serrated tussock (Nassella trichotoma) and is a Weed of National Significance (WoNS). Chilean needle grass affects sown pasture and native grasslands of south-eastern Australia. It is relatively unpalatable and reduces farm productivity by displacing more desirable pasture species. Heavy infestations can decrease productivity by as much as 50 per cent during summer. It also injures stock and downgrades wool, skins and hides with its long, sharp seeds. Chilean needle grass is [...]
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Triadica sebifera
Chinese tallow
(Syn. Sapium sebiferum) The Chinese Tallow is native to South-East Asia, mainly China, and was introduced as an ornamental tree in streetscapes and gardens. Chinese Tallow is a Class 3 Noxious Weed in the North Coast area and must be fully and continuously suppressed and destroyed. This weed is invasive and alters nutrient cycles, quickly forming dense monocultures and displacing native vegetation. While the Chinese Tallow appears to favour wetter areas such as swamps, it can grow in drier conditions and has been planted as an ornamental tree in streets and gardens. It is easily recognised by its heart-shaped leaves [...]
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Tecoma stans
Yellow bells
Yellow bells is a small shrub growing between three metres and eight metres tall. It is vase shaped with a rounded top and it can be multi-stemmed. An escaped garden plant, it is a serious threat to native riparian vegetation. The stem is smooth with squarish twigs which are green, turning tan or reddish tan as they age. The bark on the main trunk is light brown. Leaves are compound, with linear serrate leaflets about two centimetres wide. They are glossy bright green and have a tropical look. The plant has clusters of bright yellow trumpet-shaped flowers on terminal portions [...]
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Toxicodendron succedanea
Rhus tree
Rhus is a deciduous small tree, growing to between five metres and eight metres high with smooth, grey bark. The 5 mm-wide to 11 mm-wide fruits are round but slightly flattened in one plane, pale brown and hard textured with a papery skin. They hang in clusters on the tree through winter, falling in spring The rhus tree has compound leaves between 10 cm and 30 cm long with between four pairs and seven pairs of leaflets. There is an unpaired terminal leaflet at the tip of each leaf. Each leaflet has a long tapered tip and a rounded asymmetric [...]
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Ligustrum sinense
Narrow-leaf privet
Narrow-leaf privet is a much-branched, hardy, evergreen, fast-growing shrub up to four metres tall, formerly used extensively for hedging. Sprays of small, round blue-black berries persist into winter. Its stems are covered in lenticels (white dots). It is a tall multi-stemmed shrub. Leaves are dark green ovals with a pointed tip, to 6cm long and often have a wavy margin. Masses of heavily-scented tiny white tubular flowers occur in drooping sprays in spring; they are highly allergenic. One plant may produce up to a million seeds, which are spread into bushland by birds, and are also washed down waterways. Narrow-leaf [...]
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Xanthium occidentale or pungens
Noogoora burr
Noogoora burr is an annual herb which grows up to 2.5 metres tall with two growth forms; erect single stemmed or many branched and spreading. It has an extensive root system and is toxic to stock. Stems are rough to touch with short stout upward directed hairs, green and usually blotched or streaked purple. Leaves are dark green and similar in shape to grape vine leaves, about 15cm in diameter. Flowers are green and occur in inconspicuous clusters around leaf axils. The fruit is a hard woody burr with many hooked spines and two terminal beaks. Each burr contains two [...]
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Ligustrum lucidum
Broad-leaf privet
Broad-leaf privet originates from eastern Asia and has become a widespread weed of disturbed land, pastoral areas and native bushland in coastal NSW. It grows as an evergreen shrub or small tree to a height of 4-10 metres. The brown bark is covered in small white lenticels (pores that allow gas exchange). Pointed oval-shaped leaves occur in opposite pairs, and are 4-13 cm long and 3-6 cm wide. The upper leaf surface is dark green and glossy or shiny, while the under-surface is paler with distinct veins. Leaves are hairless. Cream or white tubular flowers with four petal-like lobes occur [...]
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Caesalpinia decapetala
Mysore thorn
Mysore thorn is a perennial shrub, growing to 2-4 metres, or a sprawling climber to 15 metres high, which readily forms a dense impenetrable thicket. It has tap roots and lateral roots. Mysore thorn is a vigorous growing plant capable of climbing and engulfing native vegetation, fences, sheds, bridges and other infrastructure. The long spines of the Mysore thorn can inflict serious injury to humans and animals, native and domestic. Mysore thorn forms dense thickets restricting access of stock and machinery to vital areas like water, pastures and roads. Thorns on the stems are straight or hooked and aid in [...]
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