Isotoma axillaris

Isotoma axillaris, commonly known as rock isotome, is a small herbaceous perennial in the family Campanulaceae. It grows to 50 cm high and has divided leaves. The blue to mauve star-shaped flowers appear between September and May in the species native range. It occurs in Queensland, New South Wales and Victoria, often on rocky outcrops.

The species was first formally described by botanist John Lindley in 1826 in Edward's Botanical Register.