Iris collettii Hook.f., Bot. Mag. 129: t. 7889 (1903) (syn: Iris duclouxii H.Lév.; Junopsis collettii (Hook.f.) M.B.Crespo, Mart.-Azorín & Mavrodiev);
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E. Himalaya to S. Central China and Indo-China: Doubtfully present in: Nepal; China South-Central, East Himalaya, Myanmar, Thailand, Tibet, Vietnam as per POWO;
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SK 3601 12 August 2022: 3 very high res. images.

Location: Dunai, Dolpa,  Nepal
Altitude:  2400m.
Date: 17 June 1022
Habit : Wild
Iris collettii Hook.f. ??

Yes, it appears so as per
https://www.gbif.org/occurrence/gallery?taxon_key=5299064
https://www.gbif.org/occurrence/574707707
https://wiki.irises.org/Spec/SpecCollettii
https://www.pacificbulbsociety.org/pbswiki/index.php/BeardlessIrises
Very good find from Nepal.


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SK 3624 21 August 2022: 2 very high res. images.

Location: Humla, Simikot,  Nepal
Altitude:  3300m.
Date: 10 June 1022
Habit : Wild
This too Iris collettii Hook.f. ??

Yes, appears close to images at Iris collettii


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SK 3628 24 August 2022: 4 very high res. images.

Location: Bhulbhule,  Jumla, Nepal
Altitude: 3000m.
Date: 30 May  2022
Habit : Wild 
Iris decora Wall. ??

You may be right


 

 


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References:
POWO  Catalogue of Life  GBIF (High resolution specimens) Flora of China  FOC illustration  Annotated checklist of Flowering plants of Nepal  Iris Encyclopedia  alpine garden society  pacific bulb society