These taller campanulas are herbaceous perennials, with flowers opening in sequence along the lengths of the flowers spikes. See also Adenophora for some related species, and Codonopsis for some climbing Campanula relatives.

Campanula trachelium is known as the nettle-leaved bellflowers, because the leaves have a faint resemblance to those of the nettle, although of course they don't sting, and also as bats in the belfry (no idea why). It is an upright perennial, with bristly leaves, and spikes of many tubular flowers, mid blue in the standard form but white in the variety.