Phyllode cross-section

Determine transverse sectional shape (t.s.s.) of phyllode.

Flat. Phyllodes clearly wider than thick.

For very narrow phyllodes (1-2 mm wide) it is sometimes difficult to decide it they are Flat or Compressed/Sub-terete: if in doubt it is advisable to select more than one State.

This Feature has greatest discriminating power when phyllodes are not flat.

Also, if you have already used Phyllode width in the current identification session then this Phyllode cross-section Feature will have limited discriminating power and can therefore be omitted if you wish.