Its scent was rosemary. The leaves could be rosemary. On the other hand, there are many varieties of eucalyptus around and some of them smell a lot like rosemary, that sharp medicinal odor that I find oddly compelling and repellent at the same time. (I don’t like floral-tasting food or drink in general — many teas, gin, anise, chamomile, rosemary!)
Then there’s the question of wildness. Do the campgrounds plant stuff or is much of it just whatever drifts in and takes root in the poor sandy soil? Anyway, I liked the pale purplish flowers, which remind me of dandelion puffs, except with color. And a bit more elegance and distinction. Whatever they are.