Spiranthes arcisepala
| Spiranthes arcisepala | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Cranichideae |
| Genus: | Spiranthes |
| Species: | S. arcisepala
|
| Binomial name | |
| Spiranthes arcisepala M.C.Pace
| |
Spiranthes arcisepala, the Appalachian ladies' tresses,Orchidaceae.[2][3] This orchid is native to eastern North America.[3] Long treated as part of Spiranthes cernua the species complex was reevaluated and Spiranthes arcisepala established as a separate species in 2017.[4]
Description
Spiranthes arcisepala is a terrestrial,
sepals. The petals and sepals are both white and roughly 10 mm (0.4 in) long and, except for the lower petal or lip, less than 3 mm (0.1 in) wide. The flowers look very similar to Spiranthes incurva but the lateral sepals are bent downward with their tips often lower than the tip of the lip. This feature also gives them their scientific name "arcisepala" from Latin "arcus" (arching) and "sepalorum" (sepals) referring to the downward arching sepals.[4]
Distribution
Spiranthes arcisepala is primarily found across the Appalachian Mountains, from Nova Scotia south to western Virginia, with an extension into northern Ohio, Indiana, and southern Michigan.
Habitat
Appalachian ladies' tresses are found in wet habitats like
seeps.[4]
References
- ^ "Spiranthes arcisepala - Species Page". newyork.plantatlas.usf.edu. Retrieved 19 October 2020.
- ^ "Spiranthes arcisepala M.C.Pace". ipni.org. International Plant Names Index. Retrieved 19 October 2020.
- ^ a b "Spiranthes arcisepala M.C.Pace". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 19 October 2020.
- ^ S2CID 90432295.
External links
Media related to Appalachian ladies' tresses (Spiranthes arcisepala) at Wikimedia Commons