Yes, consumption of acacia leaves can result in death by poisoning.
Specifically, some species contain alkaloids whose cautious use realizes ceremonial, medicinal or ritual purposes for humans. Other species have cyanogenic glycosides whose interaction with enzymes releases hydrogen cyanide (HCN). The glycoside-busting enzyme will make the leaves toxic. Such foliar contamination will result in death by poisoning among foraging livestock.
Who are Australia's native people?
Australia's indigenous people, or natives, are known as the Aborigines, or Aboriginal and Torres Strait Islanders.
They are a class of peoples who are identified by Australian law as being members of a race indigenous to the Australian continent. They also do not refer to themselves as Aborigines or aboriginal, but identify themselves by tribal names that reflect their language or ancestral home territory.
A map showing the different tribal names can be found at the related link.
What type of plant is a kangaroo paw?
The kangaroo paw plant of Western Australia is a unique plant, the unopened flowers of which bear some resemblance to a kangaroo's paw. It is long and slender, like the forepaw of a kangaroo.
To see a picture of the kangaroo paw, click on the related link.
Neither eucalyptus trees nor the eucalyptus oil that can be extracted from the leaves is "poisonous". However, it does contain some toxins which can cause acute gastric problems if ingested.
The few animals which feed on eucalyptus leaves, such as koalas, Ringtail possums and Greater gliders, are able to filter out the toxins through their digestive systems.
What are the adaptations of the eucalyptus tree to conserve water?
Eucalyptus trees have numerous adaptations to enable them to thrive in Australia. The trees have poisonous fibrous leaves to limit animals from eating them. Apart from koalas, Greater gliders and Ringtail possums, all of which can eat mature eucalyptus leaves, Australia's native animals can only eat the young shoots of eucalyptus trees.
Eucalyptus trees are specially adapted for Australia's bushfire-prone climate. They are known as 'sprouters', which are adult plants that can survive a fire and resprout from the roots or stems. They rely less on seed germination, which is fairly low anyway, than they do on sprouting to ensure continuation of the species. In addition, many eucalyptus species have lignotubers, which are specialised root/crown structures located beneath the soil surface, containing many food-storing cells and shoot-forming structures. Therefore, the lignotubers of eucalyptus trees protet young shoots and provide food for these shoots when they first emerge after a bushfire. Further, also seed germination is low, it is largely reliant on fire to stimulate it. Many types of eucalyptus trees have hard, woody capsules that protect the seeds during fire, but which open after fire, releasing their seeds.
The way eucalyptus trees grow is also an adaptation. Many species have wide, spreading canopies which redirect the limited rain that falls down the trunk to concentrate around the roots. The leaves of a eucalyptus tree hang down, rather than horizontally, minimising evaporation and hence water loss (transpiration), as they are not as exposed to sunlight. The leaves usually have equal numbers of stoma on each side, unlike trees which hold their leaves horizontally - they tend to have all or most of their stoma on the lower side. The leaves also tend to have a thick, waxy coating which also minimises water loss.
How do banksias survive in their environment?
The banksia is a plant with unique adaptations to help it survive in its environment.
Firstly, the nature of its flower structure attracts many more birds, animals and insects that can help to ensure pollination to other plants. The flowers are long and cylindrical, rather than single cuplike structures.
Also, banksias are able to survive bushfires better than other plants. Some banksias have thick bark that protects them from fire, whilst others have lignotubers, which are underground swellings on their roots, from which they are able to sprout again after fire. these lignotubers are protected, being underground, and rarely damaged by bushfires.
Banksia flowers rely on fire to stimulate the release of their seeds. The seeds are protected from bushfires by a resinous coating, and the action of the fire passing triggers their release as the fire melts the resin.
What is a kangaroo paw's habitat?
The Kangaroo Paw is a native Australian shrub which is found in southwestern Western Australia. It prefers a drier climate than that found in the east. Its habitat is sandy, well-drained soil in grassland and semi-arid areas.
Why is the kangaroo paw iconic to Australia?
The kangaroo paw is a very unique plant, earning its name by the supposed resemblance of its cluster of unopened flowers to a kangaroo's paw. It is long and slender, like the forepaw of a kangaroo.
The kangaroo paw is native to Australia, and found naturally only in the southwest of Western Australia. The red and green kangaroo paw is the state floral emblem for Western Australia.
Yes, paw paws are edible. They taste similar to bananas, though their texture is softer.
Where does Tasmanian myrtle grow?
Tasmanian myrtle, also known as Myrtle beech, is found in both Tasmanian and Victoria in Australia. It is found primarily in the cool temperate rainforests of both states, especially in central Tasmania and the west, and a small area of the northeast of the island. It prefers moist, sheltered conditions.
What are the characteristic of cones bearing plants?
There are many characteristics of a cone-bearing plant. The plant is usually a very hardy plant that can survive harsh conditions and rough terrain.
What do you call the movement of shoot towards light?
Phototropism is a plant's growth response to a light source, determining which direction it grows in. Positive Phototropism is the tendency for a plant to grow towards the light; Negative Phototropism is when it grows away from the light.
Is paw paw native to Australia?
Yes, the kangaroo paw is native to Australia, and found naturally only in the southwest of Western Australia. The red and green kangaroo paw is the state floral emblem for Western Australia.
What is the adaptation of a wattle?
One of the adaptations of the Australian wattle is its seeds. They are very hardy and can survive in the ground for decades. The seeds also germinate in their thousands.
Another 2 include the phyllodes and its fire resistance.
Is lavender a native Australian plant?
No. While there are many Australian native plants with small purple flowers and similar foliage, there is no native species of lavender in Australia.
Answer 2. In recent decades Lavendar has enjoyed renewed popularity. It is now cultivated in Australia, Europe, Japan, New Zealand and North America. "Lavender is like wine," says Byron, a young horticulturist who tends 25 acres of lavender plants in Southeast Victoria Australia. "Oil produced from the same species will vary from region to region as it is infuenced by the soil and climate in which the lavendar grows." Unlike wine, oil is extracted not by crushing, but by steaming. Lavender from Byron's farm is used in soaps, creams, and candles. See Awake magazine article 7/8/04 on Jehovah's Witnesses official website. Very interesting and informative.
Gum trees as a species are not endangered. There are over 600 varieties of gum trees, or eucalyptus, in Australia. Individual species which are endangered are so due to land clearing and the fact that they might live in a geographically restricted area.
How does the ghost gum survive?
The ghost gum is a species of Eucalyptus, and Eucalyptus trees are specially adapted to the dry Australian conditions. Ghost gums have wide, spreading canopies which redirect the limited rain that falls down the trunk to concentrate around the roots.
The leaves of a ghost gum tree hang down, rather than horizontally, minimising evaporation and hence water loss (transpiration), as they are not as exposed to sunlight. The leaves usually have equal numbers of stoma on each side, unlike trees which hold their leaves horizontally - they tend to have all or most of their stoma on the lower side. The leaves also tend to have a thick, waxy coating which also minimises water loss.
Ghost gums have characteristically white or grey trunks, which is more likely to reflect the sunlight, rather than absorb the sunlight like other species in more bushy areas do.
What are the adaptations of a banksia?
Banksia has a number of adaptations that have so far enabled the genus to survive despite dry, nutrient-poor soil, low rates of seed set, high rates of seed predation and low rates of seedling survival. These adaptations include proteoid roots and lignotubers; specialised floral structures that attract nectariferous animals and ensure effective pollen transfer; and the release of seed in response to bushfire.
How does the bellyache bush spread its seeds?
Dispersion and germination are the ways in which the bellyache bush spread seeds.
Specifically, the bush (Jatropha gissypiifolia) has pods which ripen into many seeds. The pods have been known to explode and eject seed as far as 42 feet (12.80 meters) away. Ants, livestock, people (through clothing, equipment, and vehicles), weather (rains, winds), and wild animals number among the dispersion agents.
The seed will not be spread by the seed-sucking jewel bug (Agonosoma trilineatum), which is an effective, seed-dissolving and devouring biocontrol of the bellyache bush.