Arceuthobium Siskiyouense (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Arceuthobium siskiyouense is a species of dwarf mistletoe known as knobcone pine dwarf mistletoe. It is endemic to the Klamath Mountains of northern California and southern Oregon, where it lives as a parasite on Knobcone Pine trees. This is a brownish shrub which is visible as a network of scaly stems extending above the bark of its host tree. Most of the mistletoe is located inside the host tree, attached to it via haustoria, which tap the tree for water and nutrients. The leaves of the mistletoe are reduced to scales on its surface.The Knobcone Pine (Pinus attenuata) crown is usually conical with a straight trunk. It reaches heights of 8-24 metres (26-79 ft). however, it can be a shrub on especially poor sites. It prefers dry rocky mountain soils. The bark is smooth, flaky and gray-brown when young, becoming dark gray-red-brown and shallowly furrowed into flat scaly ridges. The twigs are red-brown and often resinous.