tomentum

The stem is normally covered with a white tomentum at the base.

Shiny dark green on top, they have a soft white tomentum underneath.

This species often has a fine layers of hairs, a tomentum, on its lower surface.

The branches are covered with a creamy white tomentum very long lasting.

The young branches are quadrangular and covered with thick tomentum.

Branches have thick, gray, brown or yellow tomentum when new, but this is later shed with age.

New growth is margined with a short but dense white woolly tomentum.

The buds are large, long and pointed, shiny russet or light brown in colour with minute tomentum.

The young branches are quadrangular, the younger growth covered with a white to buff tomentum.

They come out of the bud involute, bright red, covered with rusty down above and white tomentum below.

The young expanding leaves are whitish or pinkish with very soft tomentum.

The petioles are covered in brown tomentum and armed with sharp spines.

The egg is laid on the leaf underside, amongst the thick tomentum.

The new leaf spear and edges of the petioles are covered with a white tomentum.

The darker central disc has a slight velvety tomentum.

However, in older specimens this outer layer of hair (technically a tomentum) may be completely worn off.

The darkness is accentuated by the low tomentum and low hairiness.

The cuticle can have colors ranging from black to yellow, but often the background colour is masked by the tomentum.

Where the tomentum is minute or only slight, the coating is described as 'tomentulose'.

Immediately above the basal tomentum the stem surface is cream-colored with few striations.

The winter buds are coated with rusty tomentum.

The leaves are much smaller than those of the type; the undersides are typically covered with a white tomentum.

The ridged rachis is flattened on the bottom and also covered in hairy tomentum.

Olla group: Species with a tomentum having fine flattened-down hairs, and no plications.

The cap is pale to orange-yellow with grayish brownish or reddish tomentum.