It is an openly branched shrub with small, linear leaves and rounded groups of pale to dark pink flowers in early spring.

Its leaves are linear in shape, semi-circular in cross-section 3–7 mm (0.1–0.3 in) long and wrinkled, with the end tapering suddenly to a sharp point.

[2] The flowers are lightly scented and are arranged in rounded groups on the ends of the branches on mostly erect stalks 4–8 mm (0.2–0.3 in) long.

[1][3] The specific epithet (interioris) was chosen by Gardner, and is "from the Latin interior (inner), in reference to the inland occurrence of the species", relative to most other verticordias.

[2][3] George placed this species in subgenus Eperephes, section Integripetala along with V. helmsii, V. rennieana, V. mirabilis and V. picta[3] This verticordia grows in sand with clay, loam and gravel, often near salt lakes.