WebCrawley et al. (1999) listed C. arvense as among the seven most invasive of weeds in grasslands in the UK. Reproduction by seed chiefly contributes to dispersal, not persistent seed banks (Hill et al. 1989; Heimann and Cussans, 1996; Bond and Turner, 2003). C. arvense thrives in disturbed habitats, and is spread by ploughing and superficial ... 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. These differ from other thistle genera (Carduus, Silybum and Onopordum) in having feathered hairs to their achenes. The other genera have a pappus of simple unbranched hairs.
Cirsium eriophorum Wooly Thistle PFAF Plant Database
WebPlant seed or plants in the fall to take full advantage of this biennial cycle. Cirsium altissimum can be planted in a variety of habitats, including wooded areas, savannas, swamps, meadows, tallgrass prairies, and in a variety of disturbance levels. Tall Thistle prefers full sun with little shade and a mesic (medium) moisture soil. WebA high-value nectar plant, Cirsium horridulum (Bull Thistle) is a biennial or short-lived perennial boasting tall stalks topped with large purple flowers (sometimes yellow) that emerge from a basal rosette of very spiny, toothed, green and purple leaves, 8-24 in. long (20-60 cm). Blooming in the spring, the pincushion-like flower heads, 3 in. across (7 cm), … individual ice cream desserts
Cirsium arvense - Wikipedia
WebJun 1, 2024 · Magenta heads atop long, leafless, and spike-less stems make ornamental plume thistle ( Cirsium rivulare ‘Atropurpureum’) an excellent garden choice. Rivulare literally means “growing by a stream,” … WebSpear thistle. Scientific name: Cirsium vulgare. A common plant of disturbed ground like roadside verges and field edges, the spear thistle has purple, fluffy flower heads that appear in summer. Its flowers attract … WebCirsium rivulare 'Atropurpureum' is an upright perennial that grows up to 4 feet (1.2 m) tall, forming a clump of branching leafy stems with spherical deep red flower-heads. Flowers appear from mid to late summer above … individual identification number itin