puberulent

[Agnes]

covered with fine soft hairs or down

[Urooj.Zafar]

Trichomes (); from Ancient Greek τρίχωμα (tríkhōma) hair) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plant is an indumentum, and the surface bearing them is said to be pubescent.

[Vihan Dobiriyal]

Puberulent is a term used in botany to describe a surface, typically of a plant or leaf, that is covered with fine short hairs or down, almost like a soft fuzz. These hairs are so fine and short, they may only be visible under magnification.

[SpraVkina]

very minutely downy