Boronia viridiflora Duretto

Shrub growing horizontally from near vertical rock faces, to 2 m long, glabrous apart from perianth. Leaves: petiole 0.5–3.5 mm long; lamina elliptic to oblanceolate, 8–40 mm long,  7–16 mm wide, attenuate at base, acute to obtuse. Inflorescence 1–3-flowered; peduncle to  3 mm long; pedicels 1.5–2 mm long. Sepals ± equal to or a little longer than petals, ovate-deltate, 2.5–4 mm long, 1.5–2.5 mm wide, acute, green, sometimes top half burgundy. Petals 2.5–3 mm long, green, sometimes tips red or burgundy; abaxial surface with minute, sparse stellate indumentum. Stamens: antipetalous filaments smooth. Cocci 4.5–5 mm long; seeds 4–4.5 mm long, grey, dull, not ridged, minutely reticulate or foveolate.

Found only growing almost horizontally from vertical sandstone surfaces of cliffs or boulders: a habit unique in the genus.