It is one of many species in the thistle genus Cirsium.

The perennial Cirsium quercetorum plant grows clumped low to the ground.

Cirsium oleraceum is cultivated as a food source in Japan and India.

The larvae develop on dry stems of Spartium and Cirsium.

Cirsium spinosissimum is a species of thistle which grows on dry rocky areas.

I am also growing morina, berkheya, echinops, acanthus and cirsium.

It has heliophytic cabbage-like plants in which a dominant species is Cirsium appendiculatum.

Cirsium canovirens, the graygreen thistle, is sometimes treated as a variety of this species.

T. horridus has also been observed feeding on 5 native Cirsium species in Tennessee.

The larvae feed on Cirsium species.

He graduated at Zurich with a dissertation on the Swiss species of Cirsium.

Adults feed on nectar of various herbaceous flowers, including Cirsium and Solidago.

Like other Cirsium species, the roots are edible, though rarely used, not least because of their propensity to induce flatulence in some people.

The host plant for the larvae is usually a thistle of genus Cirsium or Carduus.

The very rare Cirsium hydrophilum var.

Cirsium ochrocentrum is a species of thistle known by the common name yellowspine thistle.

Cirsium dissectum, also known as Meadow Thistle, is an erect perennial herb.

Cirsium dissectum (Meadow Thistle) is a more slender version.

Cirsium acaule or acaulon has the English name Dwarf Thistle.

As a subclassification of the "Eudicot" monophyletic group, Cirsium is a "true dicotyledon".

Adults feed on flower nectar, including Penstemon, Cirsium, and Verbena.

The word 'Cirsium' derives from the Greek word kirsos meaning 'swollen vein'.

Adults can be found on flowers of Scabiosa, Adenostyles and Cirsium spinosissimum.

Cirsium ochrocentrum (yellowspine thistle), infusion of plant taken by both partners as a contraceptive.

Cirsium horridulum Michx.