Indumentum

In biology, an indumentum (Latin, literally: 'garment') is a covering of trichomes (fine 'hairs') on a plant or of bristles (rarely scales) of an insect. In biology, an indumentum (Latin, literally: 'garment') is a covering of trichomes (fine 'hairs') on a plant or of bristles (rarely scales) of an insect.