Ivy leaved speedwells (Veronica hederifolia and V. sublobata)

 Key to distinguish Veronica sublobata from Veronica hederifolia:

1. Pedicel length (at least in fruit) 3–4(-6) times calyx length, usually with few to many randomly scattered long (>width of pedicel) spreading hairs, sometimes also with a single line of short hairs; corollas pale violet, purple, pink or whitish, the interior without a contrasting white (although paler) center, 4–5(-6) mm diam; styles 0.2–0.7 mm long ......................................................... Veronica sublobata
2. Pedicel length 2–3 times calyx length, with a single line of short (< width of pedicel) hairs; corollas blue with a strongly contrasting bright white center, 5–7(-9) mm diam; styles (0.6-)0.7–0.9(-1.1) mm long ...................................... Veronica hederifolia s.str.