"The blue oaks were a tree in the Unknown jungle regions on Namelesennia. The name comes from their flowers; in the spring, the blue flowers were everywhere on the tree, since the leafs didn't evolve until the summer. Their leafs were the main food of the Jungle bugs."@en . "The blue oaks were a tree in the Unknown jungle regions on Namelesennia. The name comes from their flowers; in the spring, the blue flowers were everywhere on the tree, since the leafs didn't evolve until the summer. Their leafs were the main food of the Jungle bugs."@en . "The Blue Oak (Quercus douglasii) is native to Portola Valley. Blue Oaks are medium-sized trees growing up to 15\u201325 m tall, usually with a somewhat irregularly-shaped crown, and a trunk 0.5\u20131 m in diameter. The bark is light gray with many medium-sized dark cracks. The name Blue Oak derives from the dark blue-green tint of its leaves, which are deciduous, 4\u201310 cm long, and entire or shallowly lobed. The blue color can be subtle but becomes much more evident when viewed next to one of the live oaks with which it shares its range, which tend to have much greener leaves. The acorns are 2\u20133 cm long, with a moderately sweet kernel, and mature in 6\u20137 months from pollination. It prefers dry soil and plenty of sunlight. Natural hybrids between Blue Oak and the related Shrub Live Oak (Quercus turbinella), Valley Oak (Quercus lobata) and Oregon White Oak (Quercus garryana) often occur where the species grow together in the same area. Other species sympatric with the Blue Oak include Canyon live oak and Pacific madrone. The Blue Oak is susceptible to Sudden Oak Death disease (Phytophthora ramorum), though less so than Tanoak (Lithocarpus densiflorus), or red oaks such as Coast live oak (Quercus agrifolia)."@en . "The Blue Oak (Quercus douglasii) is native to Portola Valley. Blue Oaks are medium-sized trees growing up to 15\u201325 m tall, usually with a somewhat irregularly-shaped crown, and a trunk 0.5\u20131 m in diameter. The bark is light gray with many medium-sized dark cracks. The name Blue Oak derives from the dark blue-green tint of its leaves, which are deciduous, 4\u201310 cm long, and entire or shallowly lobed. The blue color can be subtle but becomes much more evident when viewed next to one of the live oaks with which it shares its range, which tend to have much greener leaves. The acorns are 2\u20133 cm long, with a moderately sweet kernel, and mature in 6\u20137 months from pollination. It prefers dry soil and plenty of sunlight."@en . . . . . "Blue oak"@en . "Blue Oak"@en . .