LEAVES MADE UP OF 2 OR MORE LEAFLETS (COMPOUND LEAVES
A1: LEAVES ALTERNATE, NO TERMINAL LEAFLET.
Leaflets 2-6, a few teeth on the edge
in upper half; a swelling where leaflet
joins the leaf stalk and where leaf
stalk joins the stem.
A2: LEAVES ALTERNATE, TERMINAL LEAFLET PRESENT
Leaflets 5-9, edges smooth, underside
with small "hair tufts" at some angles
between mid and lateral veins. Whole
leaf not longer than 40 cm.
Leaflets 9-31 or more, edges usually
with fine teeth; small "gland" on stalk
between each pair of leaflets. Whole
leaf up to 1 m long.
A3: LEAVES OPPOSITE, TERMINAL LEAFLET PRESENT
Leaflets firm, edges smooth, tip
rounded, with fine point; first pair of
leaflets near stem.
Leaflets soft, edges toothed, tip
pointed; first pair of leaflets distant