Caladenia thysanochila

Flowering plant 34 cm tall. Leaf 14 cm long, 9 mm wide. Flower solitary; perianth segments 2.5–3.5 cm long, white with reddish purple tinges, terminated by light purplish brown clubs, clubs on sepals c. 12 mm long, those on petals c. 2 mm long, glands sessile and crowded; lateral sepals and petals spreading, with decurved tips; sepals flattened at base, abruptly tapered to acuminate tails; petals shorter than sepals, flattened at base, tapered to acuminate tails. Labellum curved forward with apex recurved and lateral lobes erect, obscurely 3-lobed, c. 13 mm long and c. 10 mm wide (when flattened), white with pink marginal and lamina calli; margins of lateral lobes with numerous calli, to 2 mm long, decreasing in size towards the apex; lamina calli in 4 or 6 rows, extending onto mid-lobe, narrow, foot-shaped, c. 1.5 mm long at base of lamina, decreasing in size towards apex (measurements derived from the type specimen). Flowers Oct.