Some numbers in the sequence; 0,1,1,2,3,5,8,13,21,34,55
1 petal – white calla lily
2 petals - euphorbia
3 petals- iris & lily
5 petals - buttercup, wild rose, larkspur, columbine
8 petals - delphiniums
13 petals - ragwort, corn marigold, cineraria, black-eyed Susan
21 petals – Shasta daisy, aster, chicory
34 petals – field daisies, plantain, pyrethrum
55 or 89 petals - michelmas daisies, the asteraceae family