Its stems are roughly circular in cross section, and have no peltate scales.

The opposite and entire leaves are 1.5-11.5 cm long by 3–15 mm wide, and have branched (dendritic) hairs, and a blistered, puckered surface.

The flowers stalks are 1.5–3 mm long, and have both dendritic and peltate scale hairs.

The calyx has five lobes (1.5-2.7 mm long), and is covered in dendritic hairs, and the yellow, white or cream corolla is 4.5–6 mm long, with no dots or stripes in its throat.

[3] It was first described by Barbara Lynette Rye in 2007 as Dicrastylis kumarinensis, from a specimen (PERTH 01869175) collected in 1978 by A.A. Mitchell, just north of Kumarina, a Western Australian town which gave the specific epithet, kumarensis ("from Kumarina").