Yellow oleander
Cascabela thevetia syn. Thevetia peruviana
family
Apocynaceae
origin
Exotic
declaration
Category 3 Restricted Matter (Biosecurity Act 2014)
Must not be distributed or disposed. This means it must not be released into the environment unless the distribution or disposal is authorised in a regulation or under a permit.
Common names
Yellow oleander, Be still tree, Captain Cook tree, Cook tree, Foreigner's tree, Lucky nut, Mexican oleander, Still tree.
An upright and spreading shrub or small tree with leaves that are spirally arranged along the stems. Its long and narrow leaves have glossy green upper surfaces and paler undersidesits stems and leaves contain a milky sap. Its bright yellow, or occasionally pale orange, tubular flowers (5-7 cm long) have five petals that are twisted when in budits fruit is large and slightly fleshy with a hard centre (25-55 mm across) and turns black as it matures.
Impact
Impact
This species and is regarded an an environmental weed in south-eastern Queensland, where it is on the list of the top 200 invasive naturalised plants, and as a priority weed in far northern Queensland. It is also seen as a potential sleeper weed in other states. It has already become established in conservation areas in south-eastern Queensland (e.g. St. Helena Island National Park near Brisbane), as well as in bushland and riparian areas, and has also been reported to invade coastal vegetation in northern Queensland (e.g. at Balgal Beach near Townsville).
Location
Location
Characteristics
Characteristics
Similar Species
Similar Species
This species and is regarded an an environmental weed in south-eastern Queensland, where it is on the list of the top 200 invasive naturalised plants, and as a priority weed in far northern Queensland. It is also seen as a potential sleeper weed in other states. It has already become established in conservation areas in south-eastern Queensland (e.g. St. Helena Island National Park near Brisbane), as well as in bushland and riparian areas, and has also been reported to invade coastal vegetation in northern Queensland (e.g. at Balgal Beach near Townsville).
