Phyllode length
Measure (in mm) length of mature phyllodes from base to tip (including pulvinus and apical point).
Best to include a range of measurements (i.e. longest and shortest phyllode).
Ignore new shoots.
For curved phyllodes measure along line of the curvature (not a straight line from base to tip).
For very short phyllodes (i.e. less than about 5 mm long) it is especially important to measure accurately because an error of even 1 mm may result in your eliminating the correct answer from Taxa Remaining.
Phyllode length has strong discriminating power within Acacia.