By Ashley48
Oxfordshire,
United Kingdom 
I saw another plant today that I don't recognise. It was fairly open in habit and looked a bit like a young magnolia (was about 3-5 feet) but then I saw the amazingly long thorns on it. Any ideas?
17 Apr, 2017
Answers
Poncirus trifoliata.
17 Apr, 2017
I think Longleaf is correct
17 Apr, 2017
it certainly matches on the flower front. Were the leaves 3 lobed?
if it is one of its common names is Japanese bitter orange.
18 Apr, 2017
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I wish I can see the flowers up close, but it could be Crataegus Monogyna (Common Hawthorn)
17 Apr, 2017