is native to the southwest region and is a particularly good option for attracting the large range of different hummingbird types in the Southwest. This type of thistle plant will also add some ...

The shape of the flower head tends to differ as well, and the leaves of young sow thistle plants tend to have a large terminal lobe, unlike hawksbeard. As with the prickly sow thistle and hawksbeard, ...

The Sacramento Mountains thistle is a rare purple flower than can grow to be six feet tall and lives only in wet, high-elevation habitats in the Sacramento Mountains near the town of Cloudcroft, New ...

Like many other biennial invasives, bull thistle is able to produce a large seed bank that can remain viable for up to 10 years! As a result, the plant can easily spread and form dense stands in ...

The species gets the name "nodding thistle" because of the large seed heads that "nod" over due to their ... Nodding thistle is often listed as a Pest Plant by Regional Councils in areas where nodding ...