Seen at an overlook stop at the south end of Lake Hawea. Finally ID'ed this one. Did it by brute force: browsing thumbnails of all naturalized (somehow it just looked kinda weedy), non-composite dicot herbs at www.nzpcn.org.nz/.
On the trail near the Palmerton EPA superfund site.
Echium vulgare (Viper's Bugloss) is a species of Echium native to most of Europe, and western and central Asia.