Caladenia concolor

Flowering plant 15–25 cm tall. Leaf 8–15 cm long, 8–10 mm wide. Flowers 1 or 2; perianth segments 2.5–4 cm long, dark purplish-red to crimson; sepals flattened at base, 2–3 mm wide, gradually tapered to a long tail, densely covered in crowded, ovoid to ellipsoid glands; petals shorter than sepals but otherwise similar. Labellum curved forward with apex recurved and lateral lobes erect, lamina ovate to broadly ovate-lanceolate, obscurely 3-lobed, 11–13 mm long, 8–10 mm wide (when flattened), dark purplish-red; margins of lateral lobes fringed with linear calli to 1 mm long; margins of mid-lobe with shorter calli becoming fused towards tip; lamina calli in 4 crowded rows, the central rows extending well onto mid-lobe, narrow, foot-shaped, c. 2 mm long at base of lamina, decreasing in size towards apex. Flowers Sep.–Oct.