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Spiranthes romanzoffiana (Ladies' Tresses) Orchidaceae (Orchid Family) Blooming information withheld to protect the Orchids. In the Four Corners area, Ladies' Tresses Orchids are uncommon and that makes them even more lovely. Numerous waxy white flowers spiral around a central stalk, often to a flower stalk height of four inches. Ladies Tresses are found in boggy areas growing to about 6-12 inches tall and they are often hidden among grasses and sedges. Basal leaves
are narrow, vertical, and often rolled inward. Main stems can sometimes recline at first (bottom center and right side of the above picture) and then grow erect. In 1789 the Orchid Family (Orchidaceae) was named by Antoine Jussieu elevating Linnaeus genus name, "Orchis", to the name of the family. Linnaeus used the Greek word "orchis", meaning "testicle", because of the shape of the roots. Louis Richard named this genus (probably in the early 1800s) and Ludolf Chamisso named this species in 1828. "Spiranthes" is from the Greek "speira", a "coil" and "anthes" is Greek for "flower". The species name is for Count Romanzoff, early 19th century Russian financier for exploratory voyages. (More biographical information about Romanzoff.) |
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Spiranthes romanzoffiana (Ladies' Tresses) Orchidaceae (Orchid Family) |
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Spiranthes
romanzoffiana (Ladies' Tresses) The top photograph at left shows that the lower lip of Spiranthes romanzoffiana is strongly reflexed (bent backwards) and its margin is erose, i.e., jagged, irregularly toothed. In the lower photograph at left you can see the sepals and petals (very closely convergent but not united) forming a hood over the column (the organ, brown and cylindrical, that results from the union of filaments and style). The upper arrow points to the constriction of the lower lip and the lower arrow points to the inward rolled margin of the lower lip, both key characteristics of Spiranthes romanzoffiana. |
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Spiranthes
romanzoffiana (Ladies' Tresses) Orchidaceae (Orchid Family) |
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Spiranthes
romanzoffiana (Ladies' Tresses) Orchidaceae (Orchid Family) |
Range map © John Kartesz,
County Color Key
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Range map for Spiranthes romanzoffiana |