familyPinaceae
genusPseudotsuga
speciesPseudotsuga menziesii
varietyPseudotsuga menziesii var. glauca

Pseudotsuga menziesii var. glauca

(Mayr) Franco

Bol. Soc. Brot. ser. 2, 24: 77. 1950.

Barney Lipscomb
Common names: Rocky Mountain Douglas-fir pino real colorado
Illustrated
Basionym: Pseudotsuga douglasii var. glauca Mayr Wald. Nordamer., 307, plate 6. 1890
Treatment appears in FNA Volume 2.
Revision as of 23:26, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Trees to 40 (–50) m; trunk to 1.2m diam. Leaves bluish green to dark green or gray-green. Seed-cones 4–7cm; bracts spreading, often reflexed. 2n =26.


Habitat: Coniferous or mixed forests
Elevation: 600–3000m

Distribution

V2 312-distribution-map.gif

Alta., B.C., Ariz., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Tex., Utah, Wash., Wyo., Mexico

Discussion

Selected References

None.

Lower Taxa

None.

"relatively thin" is not a number.

... more about "Pseudotsuga menziesii var. glauca"
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2n chromosome quantity
26 +
Abaxial microsporangium quantity
2 +
Adaxial ovule orientation
inverted +
Adaxial ovule quantity
2 +
Apex shape
obtuse +  and acute +
Apophysis architecture
sessile +
Apophysis orientation
pendent +  and deflexed +
Apophysis quantity
lacking +
Apophysis shape
cylindric +, ovoid +  and ellipsoid +
Aril quantity
Lacking (?) +
Author
Barney Lipscomb +
Authority
(Mayr) Franco +
Bark architecture
furrowed +
Bark architecture or pubescence or relief
smooth +
Bark coloration
reddish-brown +
Bark pubescence or texture
corky +
Basionyms
Pseudotsuga douglasii var. glauca +
Bract orientation
reflexed +  and spreading +
Bract position
exserted +
Branch arrangement
whorled +
Branch orientation
pendulous +
Bud coating
not resinous +
Bud prominence
conspicuous +
Bud shape
elongate +
Central lobe length or size
longer +
Central lobe size or width
narrow +
Common name
Rocky Mountain Douglas-fir +  and pino real colorado +
Cone-seed distance
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Cotyledon atypical quantity
12 (18) +
Cotyledon quantity
6;12 +
Crown shape
flattened +  and conic +
Crown size or width
narrow +
Distribution
Alta. +, B.C. +, Ariz. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Tex. +, Utah +, Wash. +, Wyo. +  and Mexico +
Elevation
600–3000m +
Habitat
Coniferous or mixed forests +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Lateral branch development
developed +
Leaf-scar arrangement or shape
elliptic +
Leaf-scar prominence
flush +  and raised +
Leaf architecture
short-stalked +
Leaf arrangement
alternate +  and singly +
Leaf arrangement or course or shape
linear +
Leaf atypical length
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Leaf coloration
bluish green;dark green or gray-green +
Leaf duration
persisting +
Leaf length
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Leaf life cycle
juvenile +
Leaf quantity
6 (?) +  and 8 (?) +
Leaf shape
flattened +
Leaf width
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Longest internode some measurement
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Number of lower taxa
0 +
Pollen architecture
not winged +  and 2-winged +
Pollen cone architecture or arrangement or growth form
solitary +
Pollen cone arrangement or growth form
clustered +
Pollen cone coloration
yellow-red +
Pollen cone life cycle
maturing +
Pollen cone position
axillary +
Pollen cone shape
ovoid +  and ellipsoid or cylindric +
Pollen shape
spheric +
Primary leaf-base duration
persistent +
Primary leaf duration
persistent +
Publication title
Bol. Soc. Brot. +
Publication year
1950 +
Reference
None +
Resin canal position
marginal +
Resin canal presence
absent +
Resin canal quantity
2 +
Root structure subtype
unspecialized +
Root texture
fibrous;woody +
Scale arrangement
arranged +  and overlapping +
Scale duration
persistent +
Scale fusion
free +
Scale shape
flattened +
Scale texture
woody +
Season quantity
1;3 +
Seed-cone architecture
compound +
Seed-cone arrangement
grouped +  and solitary +
Seed-cone duration
long-persistent +
Seed-cone length
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Seed-cone life cycle
maturing +
Seed-cone maturation
serotinous +
Seed-cone position
axillary +
Seed-cone width
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Seed architecture
winged +
Seed quantity
2 +
Seed some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Shoot height or length or size
short +
Shoot presence
absent +
Shoot size
reduced;well-defined short +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V2/V2 312.xml +
Special status
Illustrated +
Sporophyll arrangement
overlapping +
Synonyms
Abies mucronata +, Pseudotsuga douglasii +, Pseudotsuga mucronata +  and Pseudotsuga taxifolia +
Taxon family
Pinaceae +
Taxon name
Pseudotsuga menziesii var. glauca +
Taxon parent
Pseudotsuga menziesii +
Taxon rank
variety +
Terminal wing shape
decurrent +  and elongate +
Trunk diameter
0m;1.2m +
Tuft arrangement
singly +
Twig life cycle
year-old +
Twig pubescence
glabrous +  and pubescent +
Twig shape
terete +
Twig size
slender +
Volume
Volume 2 +
Whole organism atypical some measurement
4,000 cm40,000 mm <br />40 m <br /> (5,000 cm50,000 mm <br />50 m <br />) +
Whole organism coating
resinous +
Whole organism duration
evergreen +
Whole organism growth form
tree +
Whole organism odor
aromatic +
Whole organism reproduction
monoecious +
Whole organism shape
conic +
Whole organism some measurement
0m (40m) +
Wing length or size
longer +
Wing size
reduced +
X chromosome quantity
13 +  and 12 +