Thelymitra improcera

Flowering stem erect, slender, straight, 15–55 cm long, 2–3 mm diam., green to purplish. Leaf linear to linear-lanceolate, attenuate, 10–25 cm long, 5–12 mm wide, fleshy, canaliculate, ribbed abaxially, sheathing at base, dark green with a purplish base. Inflorescence 1–6-flowered. Sterile bracts usually 2, rarely 1 or 3. Flowers pale blue; perianth segments ovate to lanceolate, 10–15 mm long. Column cylindric to quadrangular, 3–5 mm long, cream to pale blue; mid-lobe slightly hooding, 0.5–1 mm long, c. 1 mm wide, yellow with a black subapical collar, apex with a 1–few rows of rounded calli; auxiliary lobes 0.5–1 mm long, converging, more or less rectangular to quadrate, fleshy, porrect or obliquely erect, apex toothed or warty, yellow; lateral lobes 1.5–2 mm long, oblong, porrect or obliquely erect, apical margins with a toothbrush-like arrangement of white hairs. Anther inserted near middle of column, with a slender incurved beak protruding below the lateral lobes. Flowers Oct.–Dec.