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Useful Tropical Plants

Quercus kerrii

Craib

Fagaceae

+ Synonyms

Cyclobalanopsis kerrii (Craib) Hu

Quercus dispar Chun & Tsiang

Common Name:

Quercus kerrii
Drawing of the fruiting branchlet (Fig 1 only)
Photograph by: Flora of China Illustrations vol. 4, fig. 382, 1
Creative Commons License

General Information

Quercus kerrii is a deciduous tree that can grow from 15 - 40 metres tall. The bole is buttressed[
443
Title
Biotik, Laos
Publication
 
Author
 
Website
http://biotik.org/species_list_laos.html
Publisher
 
Year
0
ISBN
 
Description
Information on more than 100 species of Laotian trees.
].
The tree is harvested from the wild for local use as a food and a source of wood.

Known Hazards

None known

Botanical References

266
Title
Flora of China
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/china/
Publisher
Missouri Botanical Garden Press; St. Louis.
Year
1994
ISBN
 
Description
An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.

Range

E. Asia - southern China, Bangladesh, Myanmar, Thailand, Cambodia, Laos, Vietnam.

Habitat

A sub-canopy to canopy tree in moist evergreen, mixed deciduous, lower montane and deciduous Dipterocarp forests; at elevations from 400 - 1,250 metres[
443
Title
Biotik, Laos
Publication
 
Author
 
Website
http://biotik.org/species_list_laos.html
Publisher
 
Year
0
ISBN
 
Description
Information on more than 100 species of Laotian trees.
]. Sparse forests in mountains; 100 - 1,800 metres in China[
266
Title
Flora of China
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/china/
Publisher
Missouri Botanical Garden Press; St. Louis.
Year
1994
ISBN
 
Description
An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
].

Properties

Edibility Rating *  *
Other Uses Rating *  *
HabitDeciduous Tree
Height25.00 m
PollinatorsWind
Cultivation StatusWild

Cultivation Details

Not known

Edible Uses

The fruit (the acorn) is edible in the cooked state[
443
Title
Biotik, Laos
Publication
 
Author
 
Website
http://biotik.org/species_list_laos.html
Publisher
 
Year
0
ISBN
 
Description
Information on more than 100 species of Laotian trees.
]. The oblate seed is 7 - 12mm long and 20 - 28mm wide[
266
Title
Flora of China
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/china/
Publisher
Missouri Botanical Garden Press; St. Louis.
Year
1994
ISBN
 
Description
An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
].
The seed is very likely to contain bitter tannins - the quickest method of removing them is to cook the seeds in several changes of water until the cook water is either free of bitterness, or the bitterness has been reduced to acceptable levels.
A more traditional, and slower, method is to leach the tannins by thoroughly washing the seed in running water, though many minerals will also be lost. Either the whole seed can be used, or the seed can be dried and ground it into a powder. It can take several days or even weeks to properly leach whole seeds, one method was to wrap them in a cloth bag and place them in a stream. Leaching the powder is quicker. A simple taste test can tell when the tannin has been leached sufficiently.
One traditional method of the native N. Americans was to bury the seed in boggy ground in the autumn and leave it overwinter. The germinating seed was dug up in the spring, when it would have lost most of its astringency.

Medicinal

None known

Other Uses

The wood is pale yellow[
443
Title
Biotik, Laos
Publication
 
Author
 
Website
http://biotik.org/species_list_laos.html
Publisher
 
Year
0
ISBN
 
Description
Information on more than 100 species of Laotian trees.
]. It is used in construction[
443
Title
Biotik, Laos
Publication
 
Author
 
Website
http://biotik.org/species_list_laos.html
Publisher
 
Year
0
ISBN
 
Description
Information on more than 100 species of Laotian trees.
].
The wood is used for fuel[
443
Title
Biotik, Laos
Publication
 
Author
 
Website
http://biotik.org/species_list_laos.html
Publisher
 
Year
0
ISBN
 
Description
Information on more than 100 species of Laotian trees.
].

Propagation

Seed -

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