Dendrodoa grossularia is a species of tunicate or sea squirt in the family Styelidae, commonly known as the baked bean ascidian.

[2] It is native to the northeastern Atlantic Ocean where it is common in shallow water and on the lower shore in exposed rocky sites.

[1][3] Its range includes the Baltic Sea, the English Channel, and northwestern France as far south as Quiberon, but it is absent from some localities and has a number of sub-populations.

Colonies grows on rocks and boulders in areas with strong currents, and sometimes on the holdfasts of kelp, at depths from the lower shore down to a few metres.

It favours shaded rocks, boulders, ledges and overhangs, and can form large populations in suitable habitats.