Cyclobalanopsis kerrii (Craib) Hu
Quercus dispar Chun & Tsiang
Quercus kerrii is a deciduous tree that can grow from 15 - 40 metres tall. The bole is buttressed[
The tree is harvested from the wild for local use as a food and a source of wood.
E. Asia - southern China, Bangladesh, Myanmar, Thailand, Cambodia, Laos, Vietnam.
A sub-canopy to canopy tree in moist evergreen, mixed deciduous, lower montane and deciduous Dipterocarp forests; at elevations from 400 - 1,250 metres[
]. Sparse forests in mountains; 100 - 1,800 metres in China[
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The fruit (the acorn) is edible in the cooked state[
]. The oblate seed is 7 - 12mm long and 20 - 28mm wide[
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.
The wood is pale yellow[
]. It is used in construction[
The wood is used for fuel[
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