Calochilus richiae

Flowering plant 22–36 cm tall, moderately stout. Leaf linear-lanceolate, to 30 cm long, shorter than raceme. Stem bracts 2, with leaf-like lamina. Flowers 1–5, reddish-brown with prominent darker stripes on perianth segments; subtending bract lanceolate, tapering to fine point and shorter than flower; pedicel (excluding ovary) 8–12 mm long; dorsal sepal erect or incurved, ovate, 10–14 mm long, slightly hooded, acute; lateral sepals broad-ovate, tapering at tips, about as long as dorsal sepal but narrower, divergent, spreading at side of labellum; petals spreading or incurved, ovate, slightly asymmetric, about half as long as sepals, yellow with darker stripes. Labellum rectangular at base then ovate, c. 14 mm long, contracting sharply near slender apex where the margins are conspicuously inrolled; lamina partially covered in short, acute, purple calli. Column short, wings inconspicuous, with 2 purple glands at base, connected by a ridge. Flowers Sep.–Oct.