We bought a packet of Eucalyptus gunnii from Thompson & Morgan and grew the seedlings on in our garden. We are 190m up on a north facing slope in the Cambrian Mountains. We get frosts to -20C in Winter and summers of up to 25C with lots of wind & rain all year. One of the seedlings is not gunnii and has a straggly growth with a crinkle to the leaves. I have put a link to photos. One is of the whole tree in front of a gunnii with mature and juvenile leaves plus bark. The tree is about 6m high and 20 years old. Can anybody identify the species?