DENDROLOGY

Detailed explanation-1: -Trees like spruce, pine, fir etc. Are coniferous trees i.e. they have needles instead of broad leaves. The seeds of these trees are found within this from wooden cones to protect them from the harsh weather conditions.

Detailed explanation-2: -It is a gymnosperm plant. Spruce belongs to the pine family which is an evergreen perennial plant growing in cold regions. They have long pointy green leaves and softwood. The seeds of spruce are present inside a cone which when fertilized by a male gametophyte give rise to a new individual.

Detailed explanation-3: -A spruce is a tree of the genus Picea (/paɪˈsiː. ə/), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth.

Detailed explanation-4: -pine, (genus Pinus), genus of about 115 species of evergreen conifers of the pine family (Pinaceae), distributed throughout the world but native primarily to northern temperate regions.