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Darlingtonia State Natural Site ( 18 acres ) is a state park and botanical preserve located five miles ( 8 km ) north of Florence , Oregon , United States on U.S. Route 101 , just west of Mercer Lake and south of Sutton Lake that is dedicated to the preservation of a rare plant .
 Florence , Oregon, United States
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Florence , Oregon, United States