Junipers (Juniperus)

 

Key to North America Species

North American Juniper Species Accounts

 

JUNIPERS (JUNIPERUS)

Juniperus is one of the largest genera of conifers. Approximately 50 species have been described, but the group is in need of revision. Junipers occur throughout the Northern Hemisphere with one species reaching as far south as eastern Africa. Twelve species of junipers are recognized from North America in this treatment. One of these species is superficially much different from the remaining 10; Common Juniper (Juniperus communis). Common Juniper differs from the rest in having needle-like leaves unlike the scale-like leaves of the other species.

One North American species of Juniperus is not treated here; Juniperis horizontalis. This species was not included because it never reaches tree proportions and is always a trailing or small shrub.

Junipers rarely reach a large enough size to be used for lumber. The resins are use for a variety of purposes and junipers are widely planted as ornamental trees and shrubs.

Characteristic Features:

Leaves scale-like (except in Common Juniper); branchlets round or angled; female cones small, round, fleshy with a white or gray bloom and one or more seeds internally.