Algorithm 1.

Classification strategy (leaves 1 and 2 are the cotyledons).

1:  Track leaf 1 (randomly out of the two leaves found on day 1) for all days.

2:  Look for leaf 2 in direction d1 + 180° and track it.

3:  Look for leaf 3 in directions such that |d3 − d1| > 60° and |d3 − d2| > 60° and track it.

4:  Look for leaf 4 in direction d3 + 180° and track it.

5:  Track the 5th leaf to appear, whatever its growth direction.

6:  Shuffle leaves 1 and 2 so that leaf 1 is closest to leaf 5 (convention).

7:  Shuffle leaves 3 and 4 so that leaf 3 is closest to leaf 5 (beginning of phyllotaxy).

8:  for j ≥ 1 do

9:         Look for leaf 5 + j in direction d5+j sign(d5−d4) dp and track it.

10:  end for