Leaf stalks 5 to 13 mm long, channeled on the upper surface.

Leaf stalks narrow and long, 2 to 5 cm in length.

Leaf stalks 2 to 4 cm long, with a grooved channel on the upper side.

Leaf stalks 2 to 5 mm long.

Leaf stalks 5 to 10 mm long, with scaly matter on the stalk.

Leaf stalks 15 to 25 mm long, hairy and channelled on the upper side.

Leaf stalks hairy being 5 to 20 mm long.

Leaf stalks hairy, 3 to 5 mm long, purple or green.

Leaf stalks 2 to 3 mm long, hairy.

Leaf stalks absent or up to 8 mm long.