Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Allocasuarina luehmannii -  Allocasuarina luehmannii (buloke or bull-oak) is a species of ironwood native to Australia. Stands are endangered by farming practices in the Wimmera region of western Victoria where it is integral to the survival of the endangered southeastern subspecies of the Red-tailed Black Cockatoo for feeding and nesting.The Shire of Buloke in Victoria Australia is named after this species.[citation needed]It is known as having the hardest wood in the world with a Janka Hardness of 5060 lbf.
A:
Plant