A single tree can make 9 million seeds - and it's invading Queensland
The miconia tree, once an ornamental plant, has become a major invasive threat to Queensland's rainforests due to its ability to produce millions of seeds per season. Biosecurity experts warn that the plant smothers native vegetation and poses a significant risk to biodiversity in World Heritage areas.
Why it matters
Invasive species like miconia can cause irreversible ecological damage, threatening unique ecosystems and endemic wildlife.
In 1937, a botanical garden in Tahiti planted an ornamental tree that would one day become a warning sign for some of the world’s most vulnerable rainforests. What began as a beautiful landscaping choice has grown into a serious biosecurity threat, with a single mature miconia tree capable of producing more than 8.9 million seeds in one fruiting season and posing a major risk to Queensland’s World Heritage rainforests.A plant with a dangerous pastThe tree in question is miconia, a tropical plant native to the Americas that was once valued for its striking appearance. Its large leaves, purple undersides and lush growth made it attractive to gardeners, and that ornamental appeal helped it spread far beyond its original range.
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