
With plants growing up to six feet tall, the yellow star-thistle propagates rapidly and reproduces prolifically. One large plant can produce tens of thousands of seeds annually, causing issues like crowding out native plant species, decreasing biodiversity, and creating a less resilient natural community that can lead to more vulnerable habitats, which can be threatened by wildfire and climate change. Yellow star-thistle plants have deep taproots that can significantly deplete soil moisture reserves, taking vital resources from native plant species.
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