Template:Gray, 1858a
- Gray, A. 1858. Diagnostic Characters of New Species of Phænogamous Plants, collected in Japan by Charles Wright, Botanist of U. S. North Pacific Exploring Expedition. (Published by Request of Captain John Rodgers, Commander of the Expedition.) With Observations upon the Relations of the Japanese Flora to that of North America, and of other Parts of the Northern Temperate Zone. Memoirs of the American Academy of Arts and Science, new series 6(2): 377–452. BHL