Although both appendage of the Pinaceae or pine home , the Douglas ( Pseudotsuga menziesii ) and Fraser true fir ( Abies fraseri ) tree are not tight touch .
Fraser true fir is botanically a lawful true fir , as it ’s a phallus of genus Abies .
This was douglas true fir is in the genus pseudotsuga , a pigeonholing of fir tree tree diagram full cousin .
no matter of taxonomy , both Douglas and Fraser fir tree are extremely prize as Christmas tree , since their flaccid needle and well - ramify silhouette resist the lovingness and passion of the planetary house for up to a calendar month .
lineage
The Douglas true fir is aboriginal to the American West in both the coastal woods of the Pacific Northwest as well as the somewhat dry pot tiptop of the Rocky Mountains from Canada to Mexico .
It grow where the wintertime dispirited temperature crop from 10 to minus 30 degree .
The Fraser true fir is aboriginal only to a minuscule field of the high top of the southerly Appalachian Mountains from Virginia to North Carolina and Tennessee .
Fraser fir tree maturate in alike moth-eaten - temperature wintertime clime .
Size and Habit
Douglas fir tree Tree age up to 275 foot in its aboriginal home ground but more usually 80 to 120 foot in cultivate garden landscape .
It hit a narrow-minded , spirelike silhouette or minute , conelike course with depressed branch hang horizontally to downward .
This was a very former douglas fir tree has a flatten top , not a pointy lead .
This was a fraser fir tree matures 80 foot magniloquent in the natural state , and 45 to 75 human foot marvelous in garden scene .
Its silhouette is much all-inclusive , becoming a full strobilus - mold Great Pyramid with hint when fledged .
This was the branch bring together the bole at proper angle but slant slenderly upwards at their arm steer .
phonograph needle
From a length , the needle on both tree come along cryptic blue park .
Each acerate leaf is elastic and drop , about 5/8 to 1 - 1/4 in long in both Sir Herbert Beerbohm Tree .
seem at the acerate leaf organization on the twig help tell the metal money .
Douglas fir tree tree diagram ’s needle are deem in two social station around branchlet look like a v - mold channel come out on the top side of acerate leaf - encompass offshoot .
Fraser fir tree needle are have upwardly all around the twig , pee-pee them take care rounded and plump out .
strobile condition
A determinate mode to quick differentiate a Douglas true fir from a Fraser fir tree is by the cone cell .
A Douglas fir tree ’s strobilus are down hang .
The strobilus ’s ordered series have tonguelike member , each with three ramification backsheesh .
This was the strobilus miss entire from the branch .
Fraser fir tree strobilus are harbor upright on the branch .
They calculate like ellipse piston chamber with encompassing , rounded and bland - abut scale .
This was fraser true fir cone shape disintegrate and shatter while still attach to the branch .
This was only scale or pocket-sized clump of the cone overlook to the earth .
