Thelymitra batesii

Flowering stem erect, straight, 20–45 cm tall, 1.5–2.5 mm diam., dark green with a purplish base. Leaf linear to linear-lanceolate, attenuate, 10–30 cm long, 5–15 mm wide, fleshy, canaliculate, ribbed abaxially, sheathing at base, dark green with a purplish base. Inflorescence 2–8-flowered, open. Sterile bracts usually 2. Perianth segments lanceolate, ovate to obovate, concave, 6–10 mm long, usually mauve or bluish-purple inside, outside of sepals pinkish with darker longitudinal stripes. Column 4.5–6.5 mm long, pink or purplish; mid-lobe expanded into hood over the anther, tubular, often somewhat compressed dorsally, curving abruptly through e. 90°, dark purplish, apex deeply bilobed, yellow, the lobes 1–1.5 mm long, margins thickened and recurved; auxiliary lobes often present as 2 small incurved spurs on the lower apical margin of the post-anther lobe, sometimes touching near tip of anther beak; lateral lobes converging or more or less parallel. 1.3—1.7 mm long, digitiform, porrect at base, curving gently upwards, each with a sub-terminal, mop-like, dense, untidy tuft of  white trichomes that embrace the apex of post-anther lobe. Anther inserted about mid-way along column, shortly beaked. Flowers late Sep-mid Oct.