Milk thistles' large, spiny, dark-green leaves have white marbling, which is where the plant gets its common name from, explains Amy Enfield of ScottsMiracle-Gro. 'The plant is large – up to six ...

There are 20 thistles native to Colorado, besides being prickly, they are desirable plants. Thistles are in the Asteraceae, sunflower (daisy) family.

As a plant, milk thistle has bright magenta or purple flowers surrounded by large, prickly leaves, "which expel a milky white sap when they are crushed, giving the plant its name," explains Perri ...

It’s considered an unwelcome plant in many gardens, where it can quickly grow to be a large and thorny invader. The fruit and seeds of the milk thistle plant have been used in some traditional ...

Step on a Canada thistle with bare feet and you’ll know it right away. Canada thistles have a robust root system. Roots grow 6 feet or more deep and extend horizontally 15 feet or more.

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 ...

Those allergic to the plant: Milk thistle may cause an allergic reaction in people who are allergic to the Asteraceae/Compositae family of plants. People with diabetes: ...