Rare and Endangered Native Plant Species in Saskatchewan of Lat. 55 degrees

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• John H. Hudson, An Odd Corner of the Province-Old Man on His Back Plateau , Blue Jay: Vol. 19 No. 3 (1961): September 1961
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• John H. Hudson, Rediscovery of Stephanomeria (Rush Pink) in Saskatchewan , Blue Jay: Vol. 23 No. 1 (1965): March 1965
• John H. Hudson, New or Unusual Plant Records for Saskatchewan, 1969 , Blue Jay: Vol. 28 No. 1 (1970): March 1970
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• John H. Hudson, A New Species of Spike-Rush for Saskatchewan , Blue Jay: Vol. 23 No. 4 (1965): December 1965
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• John H. Hudson, A Second Evening Star in Saskatchewan , Blue Jay: Vol. 42 No. 1 (1984): March 1984
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