It attacks the thistle 's leaves and stem, forming orange-brown lumps called pustules.
The buttonholes worn by the groom and best man were made from an English rose and a Scottish thistle .
In some instances symbols of national pride were also used, among them the English rose, Irish shamrock, and Scottish thistle .
The thistle at far right signifies the Scottish-born Stewart's ancestry, that plant being Scotland's national emblem.
Goldfinches enjoy eating the seeds of many meadow flowers including daisy, dandelion, and thistle .
In appearance, artichoke looks a bit like a thistle , though it is a member of the daisy family.
It is a tall plant up to 3ft high and the flower head is just as prickly as a thistle .
The thistle is a biennial plant, and this one is in its first year, when it develops a deep taproot.
The images of the Scottish thistle , the lion rampant, and the Saint Andrew's cross on the national flags come from that period.
The flower heads are small and numerous compared to other thistles and the roots are extensive.