From:San Marcos, TX Region: Southwest Topic: Invasive Plants Title: How to tell the difference between native and European thistles Answered by: Nan Hampton
How can I tell the difference between invasive (European) thistles and thistles that are native to Texas? And what is the best way to eradicate the invasive varieties?
According to the USDA Plants Database there are six different genera of plants that occur in Texas that have species with 'thistle' as part of their common name. Some of the species in those genera are native and others aren't. All of them, even those that are native, have been listed by at least one state as noxious. They are:
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