Web Results

en.wikipedia.org/wiki/Conifer_cone

A cone is an organ on plants in the division Pinophyta (conifers) that contains the reproductive .... although they closely resemble them. Alder trees are not even conifers, however the mature seed bearing structures closely resemble cones.

www.arborday.org/trees/ringstreenatomy.cfm

The anatomy of a tree is broken down in simple diagrams with explanations for each ... For example, the narrow needles of a Douglasfir can expose as much as  ...

www.fs.fed.us/learn/trees/anatomy-of-tree

A: The outer bark is the tree's protection from the outside world. ... For example, the narrow needles of a Douglas fir can expose as much as three acres of ...

www.britannica.com/plant/tree/Tree-structure-and-growth

The anatomy and organization of wood. Wood is ... Annual growth rings of a tree trunk(A) A Douglas fir (Pseudotsuga menziesii. Annual growth rings of a tree ...

universe-review.ca/R10-34-anatomy204.htm

The largest group of gymnosperms is the cone-bearing conifers, which include pine, cedar, spruce, fir, and redwood trees. These trees have needlelike leaves ...

aese.psu.edu/teachag/school-based-support/instruction/forest-management/anatomy

ANATOMY AND TYPES. OF TREES. Objectives. Terms for Understanding. Plant Structures. Anatomy of a Tree. Tree Groups. Looking Back. Questions for ...

www.ncbi.nlm.nih.gov/pubmed/11830409

Tree Physiol. 2002 Feb;22(2-3):129-36. Needle anatomy changes with increasing tree age in Douglas-fir. Apple M(1), Tiekotter K, Snow M, Young J, Soeldner A, ...

creationwiki.org/Douglas-fir

Anatomy. The Douglas-fir is a unique tree which can grow up to 200 feet tall in its natural location in the West. It has branches which ...

www.wood-database.com/wood-articles/softwood-anatomy

Within a conifer's trunk, the majority of the wood is comprised of long, thin cells called tracheids. In addition to giving the tree most of its strength, tracheids also ...

andrewsforest.oregonstate.edu/pubs/pdf/pub3468.pdf

Jan 2, 2002 ... We also compared needle anatomy across a chronosequence of 10-, 20-, 40- and. 450-year-old Douglas-fir trees from the Wind River site. Anat ...