Campanula rapunculoides: seed pods

Warning: this plant is invasive in Toronto. Campanula rapunculoides, known in English as "creeping bellflower" (or as I call it, "creepy bellflower"), and in French as campanule fausse raiponce, is a perennial native to Eurasia with pretty light blue-violet bell-shaped flowers.

In my neighbourhood, ladybells volunteers in a lot of gardens. Unfortunately it's listed in Invasive Exotic Species Ranking for Southern Ontario (PDF).) In our garden, its mats of roots prevent other plants from growing.

Here are the remains of the delicate seed pods at the end of winter (left on because I didn't realize at the time that this was an invasive).