[The Orchid Family in the Columbia River Gorge of Oregon and Washington]

Ladies' Tresses of the Columbia River Gorge of Oregon and Washington

The Genus Spiranthes

Creamy Ladies'-tresses, Creamy Lady's Tress, Western Ladies'-tresses, Western Ladies' Tresses: Spiranthes porrifolia (Synonym: Spiranthes romanzoffiana var. porrifolia)

Creamy Lady's Tresses: Spiranthes porrifolia

Creamy Ladies'-tresses, Creamy Lady's Tress, Western Ladies'-tresses, Western Ladies' Tresses: Spiranthes porrifolia (Synonym: Spiranthes romanzoffiana var. porrifolia)

Hooded Lady's Tresses, Hooded Ladies'-tresses, Hooded Ladies' Tresses: Spiranthes romanzoffiana (Synonyms: Gyrostachys stricta, Ibidium strictum, Spiranthes romanzoffiana var. romanzoffiana, Spiranthes stricta)


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