Entries by Ruben Green

Australasian Podocarps

Podocarpus is a genus of trees and shrubs, primarily restricted to the southern hemisphere. Most of the 100 or so species in the genus are dioecious (meaning that individuals produce either male or female reproductive structures – not both) and possess elongated leaves, varying from about 1/2 to 6 inches in length, with a distinct midrib


The eight or so described hemlock species (Tsuga spp.) are evergreen trees who reproduce through cones, like all other living conifers. However, because of their preferred habitats – cool, rainy areas — hemlocks exhibit a variety of traits and tendencies that are at odds with most other conifers.


About 35 species make up the genus Picea – the spruces. Like other members of the family Pinaceae, they are evergreen conifers, related to the hemlocks (Tsuga spp.), firs (Abies spp.) and Douglas firs (Pseudotsuga spp.); however, their closest relatives are the pines (Pinus spp.).


Clad in evergreen needles and decorated with handsome woody cones, pine trees (Pinus spp.) are among the most recognizable trees in the world. In addition to their aesthetic charm, pine trees provide a variety of resources to the ecosystems in which they grow.

True Cedars

The term “cedar” is applied to so many different types of trees that many tree professionals, farmers and botanists refer to trees of the genus Cedrus as “true cedars.”


Larches are medium to large trees of the genus Larix. Scientists debate the finer points of the group’s interrelationships and classification, but most recognize about 10 to 15 species.

Fir Trees

Examination of the needles helps to distinguish fir trees from lookalikes. Fir needles are generally soft to the touch, flat in cross section and attach to the branch via suction-cup-like structures


Arborvitaes are evergreen conifers, native to North America and Asia. Thanks to their hardy nature, they are quite popular among homeowners, arborists and landscape designers.

True Redwoods

Coastal redwoods (Sequoia sempervirens) are among the most famous trees in the world. Most of this fame precipitates from their incredible size, as they are among the tallest species on Earth.