Term: cotton thistle: biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: oral smear: alimentary tract smear of material obtained from the mouth
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: japanese lilac: lilac of northern China having ovate leaves and profuse early summer rose-lilac flowers
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: curtain: hanging cloth used as a blind (especially for a window)
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: operations research: research designed to determine most efficient way to do something
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: instrumental music: music intended to be performed by a musical instrument or group of instruments
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: religious movement: a movement intended to bring about religious reforms
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: capetian: a member of the Capetian dynasty
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: hysteric: a person suffering from hysteria
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: spit: a narrow strip of land that juts out into the sea
Broader: thistle: any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | Unrelated: american dewberry: North American dewberry