Lady Fern – Athyrium filix-femina

USS Sentinel (AM-412) was a steel-hulled fleet (oceangoing) minesweeper of the Admirable class planned for the United States Navy. She was a part of a group of minesweepers scheduled to be built as replacements and for Lend-Lease commitments. On 12 August 1945, three days before hostilities ceased in the Pacific, the U.S. Navy cancelled its contract with the Defoe Shipbuilding Co., Bay City, Michigan, for the construction of Sentinel.

References

•  This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.
• "Minesweeper Index". Navsource.org. 2006. Retrieved 15 June 2009.