Berberis candidula C. K. Schneid., Bull. Herb. Boissier II, 5: 402 1905. (syn: Berberis hookeri var. candidula C.K. Schneid.);
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China (NE. Sichuan, NW. Hubei) as per POWO;
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SK 3377 30 March 2022: 4 very high res. images.

Location: National History Museum, London 
Altitude: 10m.
Date: 27 March 2022
Habit : Cultivated
Berberis … ???

Probably Berberis darwinii.


I agree Berberis sp.
However it is definitely not Berberis darwinii… one I have grown and is very common locally
Which has tiny, angular leaves, that resemble holly and  orange flowers on clusters…see my images.
https://www.flickr.com/search/berberis%20darwinii&view_all=1
I have been trying to work out which one mystery one is, as we grow many different ones in UK.
I am not positive which one  it is….. maybe Berberis candidula?
Evergreen, With long thorns, sparce  pale yellow  flowers and leaves that have a few prickles on the margin./pointed tip
https://en.wikipedia/Berberis_candidula_2016-04-19_7694.JPG
https://www.bluebellnursery.com/berberis-candidula.html


Berberis candidula C.K.Schneid. seems to be a close one !


 

 


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References:
POWO  Catalogue of Life  The Plant List Ver.1.1   Wikipedia  Hortipedia