Our Mystery Plant (Tall thistle, Cirsium altissimum) is a thistle, and I was able to enter a patch of this stuff on a recent field trip in the upstate of South Carolina.Spiny stuff! It is, in fact ...

Tall thistle is generally no taller than musk thistle -- 5 to 7 feet tall. But it is more of a bushy plant. Tall thistle is often found in drainage ditches and wetland areas and not in pastures.

Our Mystery Plant (Tall thistle, Cirsium altissimum) is a thistle, and I was able to enter a patch of this stuff on a recent field trip in the upstate of South Carolina. Spiny stuff!

When it comes to creating a garden that truly makes a statement, tall perennials are your best allies. These towering plants ...

Pensioner lets monster thistle grow to 12ft tall and sprout 100 flower heads. Retired John Lowde, 86, has grown a 12ft thistle in his front garden; He believes it could set a new world record; ...

A single musk thistle can produce around 20,000 seeds that can remain viable for 10 years. It can be easily confused with the native tall thistle, which starts blooming a little later.

Florida thistle species include tall thistle, Lecontes thistle, swamp thistle, Nutalls thistle, purple or yellow thistle, bull thistle, Virginia thistle.

One useful introduction is teasel, a tall thistle-like plant that grows in sloughs. Some non-native weeds flourish in Idaho | Idaho Statesman Margaret Lauterbach ...

The flowers are insect pollinated, and various thistle species are widely known as important food sources for butterflies, as well as bees.