351008
Oak artichoke galls , oak hop galls , larch-cone galls or hop strobile develop as a chemically induced distortion of leaf axillary or terminal buds on Pedunculate Oak ( Quercus robur ) or Sessile Oak ( Quercus petraea ) trees , caused by the parthenogenetic gall wasp Andricus fecundator , which lays single eggs within leaf buds using their ovipositor .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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