OBJECTIVE FORESTRY

Detailed explanation-1: -Plant hairs (botanically called trichomes) may be present on stems or leaves. They are prolonged epidermal cells; on a stem or leaf it may be living or dead, deciduous or persistent; on a root it is short-lived and confined to the absorbing zone, called a “root hair”.

Detailed explanation-2: -Well-known examples of high pubescence are the tropical giant rosettes above tree line in Africa and the equatorial Andes. These exceptional plants have been shown to benefit in various ways from a covering of dead trichomes, often much thicker than the actual leaf (Körner, 2003.

Detailed explanation-3: -Trichome: hair, bristle, prickle, scale or other hair-like outgrowth of the epidermis, without vascular tissue.