Similar(1): Top view of a flower of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(2): Flower bud of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(3): Opening flower of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(4): Flower head of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(5): Unopened flower of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(6): Close-up of a flower of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(7): Summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 2, 2026
Similar(8): Summer-blooming thistle flower (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 10, 2014