Iziphi izici zesihlahla se-blue oak ezisivumela ukuba sisinde ezikhathini ezinde zesomiso?
Context:I-Quercus douglasii, eyaziwa ngokuthi i-oak eluhlaza okwesibhakabhaka, iyinhlobo ye-oak ehlala eCalifornia, evame kakhulu e-Coast Ranges nasezintabeni zaseSierra Nevada. Yisihlahla se-oki esinamakhasi amaningi esibekezelela isomiso eCalifornia, futhi siyisilwane esivelele esimweni semvelo se-blue oak woodland. Ngezinye izikhathi yaziwa nangokuthi i - mountain oak noma i - iron oak.  I-Quercus douglasii iyona evumelana kakhulu nesomiso phakathi kwama - oak aseCalifornia. Ine-canopy encane kunezihlobo zayo ezingabekezeleli isomiso kangako, futhi ifaka imali eningi ekukhuleni kwezimpande kunamaqabunga kuwo wonke umjikelezo wayo wokuphila. Amaqabunga ayo anombala oluhlaza okwesibhakabhaka asiza ekumelaneni nesomiso; ngesikhathi sesomiso, umbala wamaqabunga uba sobala kakhulu. Izihlahla nazo zingawa amaqabunga azo ehlobo kunokuba ziwe eminyakeni eyomile, kodwa ngokuvamile ziqhubeka nokuthuthukisa ama-acorn azo ekwindla. Isomiso singenza ukuba izihlahla zingaqhakazi entwasahlobo.  Abantu bomdabu baseCalifornia babevame ukuqoqa ama-Quercus douglasii acorns, ababewabheka njenganambitheka kahle, bese bewacubungula aba ufulawa we-acorn. Babenza obhasikidi ngezitshalo ze - oak eluhlaza okwesibhakabhaka, benze izitsha ezinjengezitsha ngokhuni, futhi benze udayi ngama - acorn. Ngokwezentengiselwano, i-blue oak isetshenziselwa izinkuni kuphela. Ama - acorn adliwa izilwane zasendle nemfuyo. Zingadliwa kodwa, uma zimunyu, kungase kudingeke ukuba ama-tannin ahlanzwe.
I - oak eluhlaza okwesibhakabhaka iyisihlahla se - oak esinamaqabunga amaningi esivela eCalifornia. Iyakwazi ukubekezelela isomiso kangcono kunezinye izihlahla ze - oak ngenxa yokuthi ihlumela layo lincane. Lo mkhiwane usebenza kakhulu ekuthuthukiseni izimpande zawo kunamaqabunga awo. Lokhu kuyenza ikwazi ukubekezelela isikhathi eside sesomiso.