GIT Forestry Consulting - Consultoría y Servicios de Ingeniería Agroforestal - www.git-forestry.com
Indeed, pictures of the tree in question showed similarities for flower bud clusters, general leaf shape, and not a too dissimilar bark outlook for the case of a young specimen. The most likely candidate within the Snow Gums to match this tree was E. pauciflora ssp. pauciflora, a normally narrow leaved form of the species.
The alternative species suggested by our also eucalyptologist friend Ian Barclay at The Desert Northwest (Sequim, Washington) was E. kybeanensis, the Kybean Mallee Ash. And he might well be totally right.
The plate above provides a comparative view of both species, depicting their similarities for flower buds and bloooms, but also showing how, for this case, observation of leaf shape and size, but more importantly, of leaf venation patterns, can yield an accurate Eucalyptus identification.
In other words: "by their buds and fruits you will know them, but do not forget the other details".
Example of "bark only" diagnosis misleading Eucalyptus species identification (Click image to enlarge)
Find a local expert to ID your Eucalyptus