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'Veronica obtusata' from the website Trees and Shrubs Online (treesandshrubsonline.
Allied to V. macrocarpa, this differs in being a low spreading shrub and also, from the typical variety, in its lavender-coloured flowers. A native of the west coast of North Island, it is doubtfully hardy outside the milder parts. In its native habitat it flowers from around midsummer to midwinter, but in the form introduced by Graham Hutchins from the Christchurch Botanic Garden bears its main crop in spring.
Plants with lavender-coloured flowers found in one locality of North Island in 1926 are near to V. obtusata but probably hybrids. They were described by Petrie under the name Veronica × bishopiana.