Mysore raspberry

Also known as White blackberry or Hill raspberry, Mysore raspberry is originally from India and South-East Asia. It forms dense, impenetrable thickets and has become invasive in some areas where it has been introduced, including Hawaii and the Galapagos Islands. It is a Class 3 noxious weed around the North Coast region. Mysore raspberry is a large scrambling shrub, 3-4.5 metres high, with sharp, hooked thorns. Its leaves are hairy and made up of from five leaflets to nine leaflets, 2.5-6 cm long, with toothed edges. The upper side is dark green while the

mahonia with fruit

Mahonia

Mahonia, also known as Chinese holly grape, is a native of China and has been introduced to many countries as a garden plant. It has invaded bushland and pasture on the Dorrigo Plateau. This is the first time it has been known to naturalise (reproduce in the wild) in Australia, but its apparent rapid spread indicates potential for it to have significant impact. It has also been identified as a potential problem in New Zealand. Mahonia is listed as a Class 3 noxious weed across the North Coast and Northern Tablelands of NSW. A shrub, generally up to four metres […]

 

Cecropia

Cecropia are rapidly growing trees originating from tropical America. They are pioneer species that can quickly establish in disturbed areas and have become weeds in South America, Malaysia and Africa. In the past, Cecropia species (including Cecropia peltata) have been imported into Australia for private plant collections, but all known plants have been destroyed due to their invasive potential. They are listed as Class 2 noxious weeds across the North Coast region. They are a rapidly growing tree, usually 10-20 metres tall, but can reach up to 25 metres. The plants can be distinguished by the large U-shaped leaf scars […]

 

Cockspur coral tree

Cockspur coral tree (also known as Cocks comb coral tree) is a deciduous shrub or tree from South America. Originating from northern Argentina, eastern Brazil, Bolivia, Paraguay and Uruguay, it can grow to 10 metres. It has been commonly grown in Australia as an ornamental plant and has become invasive along waterways in coastal NSW north of Sydney. It is gazetted as a Class 3 noxious weed in the Bellingen, Nambucca, Coffs Harbour and Clarence Valley local-government areas and as a Class 4 noxious weed on the Far North Coast. It usually grows to between five metres and eight metres […]

 

prickly pear

Prickly pear

Prickly pear is an erect shrub, growing to about one metre (rarely to two metres) high. True leaves are shed early and stem segments are often incorrectly referred to as leaves. Fruit are egg-shaped with a depressed top. They are purple when ripe and edible. Seeds are pale brown, to five millimetes long. Lower segments of the stem may be thickened and trunk-forming on older plants while flattened upper segments are up to 40 cm long and up to 25 cm wide. Yellow flowers are about six centimetres wide, mostly on the margins of the fleshy segments and occur in […]

 

Common pampas grass

Pampas grass

Pampas Grass is a large, long-lived, perennial tussock grass more than two metres high with prolific fluffy seed heads (up to three metres high). It is common in open, sunny places with damp soils and on disturbed sites. Sharp, cutting bluish-green leaves grow up to two metres long. Flowers occur in summer, developing well above the foliage in two sex forms on separate plants. Female flowers are white and fluffy, while bisexual flowers are yellow, pale pink or pale mauve and almost hairless. Each plume produces up to 100,000 seeds in late summer/autumn and up to 50 plumes can occur […]

 

Mistflower in flower

Mistflower

Mistflower is distinguished by multicellular, purple-striped, non-glandular hairs on upper stems and leaf stalks. It has flat-topped terminal clusters of small white flowers (florets). Its florets are all tubular. Seeds have hairs on ribs. The seeds are five-angled, black, 1-2 mm long, topped with bristles 3-4 mm long which readily separate from seeds. Stems are purplish and cylindrical. Leaves are opposite, mostly 7.5 cm long and 2.5 cm wide, toothed along the edges and tapered at each end. Flowers occur in white heads, 4 mm to 6 mm wide, in flat-topped showy clusters (corymbs). Bracts around the heads are hairy. […]

 

Johnson grass

Johnson grass, a coarse perennial grass, produces large, scaly rootstocks and grows in dense stands up to two metres high. This plant commonly grows in fields and roadsides and is a pest in sugar cane crops. Once grown for hay, it is now classified as a noxious weed. Johnson grass can be toxic to stock when young. Stems grow up to two metres in height. Leaf blades are up to 50 mm wide and have prominent mid ribs. Seed heads are large and loose. Seeds are smaller than sorghum seeds Seeds attach to hair or fur. They may also be […]

 

A Bathurst burr branch.

Bathurst burr

Bathurst burr is a mainly summer-growing annual herb, commonly 30 cm to 60 cm high. Plants produce burrs in February and generally die early in winter, but mature plants may be found at any time. Stems are greenish yellow with fine short hairs. At the base of each leaf are one or two triple-pronged yellow spines. Leaves are divided into three parts. They are dark green, shiny above, with pale veins and they are pale green/whitish beneath. Flowers are creamy green, small and wind pollinated, appearing from February to July. The burrs attach to the coats of animals and to […]