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Xanthorrhoea johnsonii
Flowering grass trees after back-burning fires, from fresh flower spike to (burnt) seed head. This species is Xanthorrhoea johnsonii, commonly known as "Johnson's grass tree", a large plant in the family Asphodelaceae. The Xanthorrhoea genus contains roughly 30 species, and this particular one is endemic to eastern Australia. Full height is attained at about 3 metres, although some sources say up to 5 metres, and individual trees can be hundreds of years old. It survives in the poorest soils with a shallow root system, enabling easily access to nutrients from decaying litter, while storing all the food reserves in its stem. Older foliage is very strong, hence one of the common names being "steel grass", and is often used in floral design where it can be bent and looped without breaking. PS: The butterfly on this flower spike is a common Australian crow (Euploea core), and there are two tiny native stingless bees just above it.
They are drought and frost tolerant, and occur mainly in soils that are very free draining and consequently low in nutrients - sandstone in this case. Toohey Forest is a eucalyptus woodland reserve of approximately 655 hectares. The forest is situated within an urban area on the south side of Brisbane, within the city limits. These grass trees were spotted along the Nathan Ridge Track. https://www.brisbane.qld.gov.au/clean-an...
A previous spotting from January this year which shows the grass trees in various states of decay - https://www.projectnoah.org/spottings/11...
2 Comments
Oh wow, another one. Thanks very much, Machi. And many thanks to all who voted for my spottings :)
Congratulations Neil Ross, your spotting won Third Place in our 2019 Best Wildlife Photo Competition - Plants category!
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