Photo courtesy of Hugh Wilson
Navasota Ladies’ Tresses (Spiranthes parksii)
Among the endangered plants and animals is the Spiranthes parksii, more commonly known as the Navasota Ladies’ Tresses. It is a type of orchid and ranks as one of five endangered species of interest that occurs in the Brazos River basin.
An erect, 5-15 inch tall plant, with a single row of creamy white flowers that spiral around the upper portion of the stalk.
Federally and State Endangered
Current Range Map
Click Here To View Map . Map courtesy of Texas Parks and Wildlife Department.
Navasota ladies’ tresses occur primarily in openings of post oak woodlands in sandy loam soils, often over an impermeable clay layer. They are often found adjacent to drainages and seasonal streams. Orchids live in fungi-rich soils that provide the plant with nutrients. Because fungi are so important to Navasota ladies’-tresses’ survival, the distribution of the root fungus likely influences the orchid’s range and survival (Wonkka 2010).
Flowering occurs from October to December.
Ongoing Research/Conservation Efforts
The City of College Station received a U.S. Fish and Wildlife Service Section 6 Recovery Grant to purchase property along
Alum Creek in Brazos County where the Navasota ladies’ tresses were known to occur. This property is now part of the
city’s Lick Creek Nature Center. More information on the Nature Center can be located
For more information, visit:
Read more about the other endangered species of interest here.