Spiranthes romanzoffiana, commonly known as hooded lady's tresses (alternatively hooded ladies' tresses) or Irish lady's-tresses (Irish: Cùilìn Gaelach), is a species of orchid. Collected by Chamisso during the Romanzov expedition it was described by him in 1828 and named for Count Nikolay Rumyantsev who financed the expedition. This orchid is native to North America, Ireland and the British Isles.