| Speedwell, Veronica teucrium, Veronica prostrata, Veronica spicata, Veronica longifolia|
Veronica austriaca (syn. V. teucrium) (broadleaf speedwell, large speedwell, Austrian speedwell, or saw-leaved speedwell) is a species of flowering plant in the family Plantaginaceae, native to northern temperate Europe. Growing to 90 cm (35 in)tall by 60 cm (24 in) broad, it is a mound-forming herbaceous perennial, with deeply toothed leaves and erect spikes of bright blue flowers throughout summer.
The specific epithet austriaca refers to Austria within its native range.
Several cultivars are available, of which the following have gained the Royal Horticultural Society's Award of Garden Merit:-'Crater Lake blue'
Veronica austriaca Wikipedia