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).[2][3][4][5][6] It is also naturalised in North America, Africa, and Australia and is an invasive weed in some areas.[7][8][9] It is the national flower of Scotland. Spear thistle is often a ruderal species, colonising bare disturbed ground, but also persists well on heavily grazed land as it is unpalatable to most grazing animals.[13] Nitrogen-rich soils help increase its proliferation.[14] The flowers are a rich nectar source used by numerous pollinating insects, including honey bees, wool-carder bees, and many butterflies.[15] The seeds are eaten by goldfinches, linnets and greenfinches.[16] The seeds are dispersed by wind, mud, water, and possibly also by ants; they do not show significant long-term dormancy, most germinating soon after dispersal and only a few lasting up to four years in the soil seed bank.[17] Seed is also often spread by human activity such as hay bales.[13] (WikipediA} #bullthistle #pollinators #cirsiumvulgare #spearthistle (at Sweet Briar College Historic District) https://www.instagram.com/p/CBW44xkFPfZ/?igshid=15ijrjcrh0fs6