Difference between revisions of "Quercus garryana var. breweri"

(Engelmann) Jepson

Fl. Calif. 1(2): 354. 1909.

EndemicSelected by author to be illustrated
Basionym: Species Engelmann
Treatment appears in FNA Volume 3.
FNA>Volume Importer
 
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--><span class="statement" id="st-d0_s0" data-properties="shrub orientation;shrub growth form;shrub some measurement"><b>Shrubs,</b> spreading and clonal, to 2-3 m, multitrunked.</span> <span class="statement" id="st-d0_s1" data-properties="twig coloration;twig pubescence;twig pubescence;hair orientation"><b>Twigs </b>reddish, sparsely puberulent, often glabrate, without spreading hairs.</span> <span class="statement" id="st-d0_s2" data-properties="bud coloration;bud shape;bud some measurement;bud pubescence"><b>Buds </b>reddish-brown, ovoid, 2-5 mm, glandular-puberulent.</span> <span class="statement" id="st-d0_s3" data-properties="blade-leaf coloration;blade-leaf pubescence;blade-leaf distance;hair orientation"><b>Leaf-</b>blade abaxially light green, velvety to touch, sparsely to densely covered with erect (2-) 4-6-rayed hairs 0.2-0.5 mm.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> spreading and clonal, to 2-3 m, multitrunked. <b>Twigs</b> reddish, sparsely puberulent, often glabrate, without spreading hairs. <b>Buds</b> reddish brown, ovoid, 2-5 mm, glandular-puberulent. <b>Leaf</b> blade abaxially light green, velvety to touch, sparsely to densely covered with erect (2-)4-6-rayed hairs 0.2-0.5 mm.</span><!--
  
 
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|publication year=1909
 
|publication year=1909
 
|special status=Endemic;Selected by author to be illustrated
 
|special status=Endemic;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_1024.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_1024.xml
 
|genus=Quercus
 
|genus=Quercus
 
|section=Quercus sect. Quercus
 
|section=Quercus sect. Quercus
 
|species=Quercus garryana
 
|species=Quercus garryana
 
|variety=Quercus garryana var. breweri
 
|variety=Quercus garryana var. breweri
|blade-leaf coloration=light green
 
|blade-leaf distance=0.2mm;0.5mm
 
|blade-leaf pubescence=velvety
 
|bud coloration=reddish-brown
 
|bud pubescence=glandular-puberulent
 
|bud shape=ovoid
 
|bud some measurement=2mm;5mm
 
|hair orientation=erect;spreading
 
|shrub growth form=clonal
 
|shrub orientation=spreading
 
|shrub some measurement=2m;3m
 
|twig coloration=reddish
 
|twig pubescence=glabrate;puberulent
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Quercus garryana]]
 
-->[[Category:Treatment]][[Category:Quercus garryana]]

Revision as of 13:29, 27 July 2019

Shrubs, spreading and clonal, to 2-3 m, multitrunked. Twigs reddish, sparsely puberulent, often glabrate, without spreading hairs. Buds reddish brown, ovoid, 2-5 mm, glandular-puberulent. Leaf blade abaxially light green, velvety to touch, sparsely to densely covered with erect (2-)4-6-rayed hairs 0.2-0.5 mm.


Phenology: Flowering late spring–early summer.
Habitat: Montane conifer forests and chaparral
Elevation: 1400-1900 m

Discussion

Quercus garryana var. breweri appears to be endemic to the Siskiyou region of California and Oregon; it may extend into the northern Sierra Nevada of California. Specimens sometimes placed here from the Coast Ranges of northern California are probably shrubby forms of Q. garryana var. garryana or hybrids between the latter and Q. durata (see treatment). It should be noted that key characteristics separating Q. garryana vars. breweri and semota from var. garryana (clonal habit, smaller, glabrate, brown buds, montane habitat of the former two varieties) suggest a relationship of these two varieties with the Rocky Mountain Q. gambelii. The latter species has smaller fruit than Q. garryana, but the extent of variation in this characteristic in Q. garryana var. breweri is unknown.

Selected References

None.

Lower Taxa

None.
Kevin C. Nixon +  and Cornelius H. Muller +
(Engelmann) Jepson +
Species +
Calif. +  and Oreg. +
1400-1900 m +
Montane conifer forests and chaparral +
Flowering late spring–early summer. +
Endemic +  and Selected by author to be illustrated +
Quercus douglasii var. neaei +, Quercus garryana var. jacobi +, Quercus jacobi +, Quercus lobata var. breweri +  and Quercus neaei +
Quercus garryana var. breweri +
Quercus garryana +
variety +