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Arceuthobium siskiyouense
Arceuthobium siskiyouense is a species of dwarf mistletoe commonly known as knobcone pine dwarf mistletoe and as Arceuthobium campylopodum subsp. siskiyouense. It is endemic to the Klamath Mountains of northern California and southern Oregon, where it parasitizes a number of species of hard pines in the subgenus Pinus. Its ecological impact on the coniferous forests where it is found is significant, both because of its negative impact on the health of infected trees and because it provides food and microhabitats (by inducing witch's brooms) for other wildlife.
A. siskiyouense has one of the narrowest distributions in its genus, occurring only in the extreme northwest of California and the extreme southwest of Oregon. It is one of three dwarf mistletoe taxa endemic to the Klamath Mountains, the others being A. monticola and A. abietinum subsp. wiensii. The region has been identified as a center for dwarf mistletoe diversity, with 11 species present.
Fir dwarf mistletoe · American dwarf mistletoe · Apache dwarf mistletoe · Azores Dwarf Mistletoe · Southwestern white pine dwarf mistletoe · Sugar pine dwarf mistletoe · Western dwarf mistletoe · Limber pine dwarf mistletoe · Pinyon dwarf mistletoe · Douglas-fir dwarf mistletoe · Huachuca Mountain dwarf mistletoe · Larch dwarf mistletoe
Text excerpted from the Wikipedia article Arceuthobium siskiyouense by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
