Spiranthes spiralis for confirmation : 6 posts by 4 authors. Attachments (6) – around 800 kb each.
Family – Orchidaceae
To me this hairy white flowered Spiranthes looks close to Spiranthes spiralis.
But still I am not sure as Spiranthes is a complex genus with some newly described species from Himalayas like S.himalayensis.
I hope orchid experts like … sir will help to confirm it.
The plants are found growing in association with Epipactis veratrifolia and Equisetum sp. in marshy fields.
Altitude – 750metres amsl
From Hamirpur, Himachal Pradesh
Dated – 27/4/2018
Why not Spiranthes sinensis ?
This can be S. himalayensis or a hairy form of S. sinensis but can’t confirm without dissecting.
As per efi thread:
Flora of China also supports this.
Spiranthes australis is not found in India. It is not easy to confirm this. Recently Spiranthes hongkongensis was reported from Nepal so there are chances of having it in India too. Some details needed to confirm.
Thanks … for bringing up old interesting conversation (now locked). Only Pankaj can resolve it for us. I have 22 more images which I can share with … if he wants: But these do suggest S. himalayensis:
1. Flowering (clicked) in May (vs flowering August to Septtember in India in S. sinensis)
2. I can see densely pubescent inflorescence with some glandular hairs (vs pubescent to glabrous in S. sinensis)
3. Flower completely white (vs pink or purple, tip sometimes white in S. sinensis)
More of course … would give final verdict.
Since S. sinensis and S. australis are now treated as distinct species according to POWO (synonyms acoording to both eFlora of China and eFlora of Pakistan), I chanced upon this 2020 paper published in Acta Phytotax Geobot
It further confuses me as it says “the stems, inflorescence and ovaries of S. australis are generally pubescent, whereas those of S. sinensis are reported to be glabrous. … please resolve
Please check the pdf I attached last time.
S. sinensis comes in both glabrous and hairy forms. We have seen both and checked DNA too. They are exactly same as per DNA.
To me this was a surprise. Thats why I dislike DNA studies so much. How can one with and the other without hairs have same DNA!!