Cirsium is a genus of perennial and biennial flowering plants in the Asteraceae, one of several genera known commonly as thistles. They are more precisely known as plume thistles[citation needed]. These differ from other thistle genera (Carduus, Silybum and Onopordum) in having a seed with a pappus of feathered hairs on their achenes.

Cirsium vulgare, the spear thistle, bull thistle, or common thistle, is a species of the Asteraceae genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains).

The following species in the flowering plant genus Cirsium, the plume thistles, are accepted by Plants of the World Online. [1] A 2022 molecular study reassigned many species to other genera, but Cirsium remains a speciose genus. [2]

Bull Thistle is a native herbaceous annual/biennial or short-lived perennial plant in the Asteraceae (daisy) family that is native to North America on the Coastal Plain from southern Maine to Florida and west to Texas. Its name comes from the Greek kersion which means thistle.

Thistles are mainly native to Eurasia and northern Africa. The word "Cirsium" derives from the Greek word "kirsos," meaning "swollen vein." Thistles are known for their effusive flower heads, usually purple, rose, pink, or yellow and white.

Bull Thistle is a biennial plant in the Asteraceae (daisy) family that is native to Europe to Siberia, and the Arabian Peninsula. Its name comes from the Greek kersion which means thistle. The plant is spiny all over with a tall branching stem that contains large reddish purple flower heads.

Plant Characteristics: Cirsium stands out with its bold, spiky foliage and striking thistle-like flowers, making it a unique focal point in gardens. These plants are excellent for attracting pollinators like bees and butterflies. Ideal Growing Conditions: Thrives in full sun and well-drained soil.

Cirsium rivulare 'Atropurpureum' is an ornamental thistle, bearing incredible, deep purple thistles on elegant, long, leafless stems, in contrast with spiny, dark green foliage. It's a wonderful choice for growing towards the back of a sunny herbaceous border, and works well when planted among grasses and other tall perennials.

Pasture Thistle is a native biennial or monocarpic perennial herb in the Asteraceae (daisy) family found in the northeastern and north central United States and the Canadian Province of Ontario. It is found in the Piedmont of NC. Its name comes from the Greek kersion which means thistle.

Cirsium vulgare (Savi) Ten. Asteraceae Bercht. & J. Presl - Aster family P.