Thelymitra pallidiflora

Thelymitra pallidiflora is a tuberous, perennial herb with a single erect, channelled, linear to lance-shaped leaf 100–250 mm (4–10 in) long and 5–12 mm (0.2–0.5 in) wide with a purplish base. Between two and ten white to very pale blue flowers 10–30 mm (0.4–1 in) wide are arranged along a flowering stem 150–450 mm (6–20 in) tall. The sepals and petals are 10–20 mm (0.4–0.8 in) long and 3–8 mm (0.1–0.3 in) wide. The column is white or pale blue, 5–6.5 mm (0.20–0.26 in) long and 2.5–3.5 mm (0.098–0.14 in) wide. The lobe on the top of the anther is dark brown or black with a yellow tip, tubular and gently curved. The side lobes curve upwards and have, toothbrush-like tufts of white hairs. Flowering occurs in October and November but the flowers open only on warm to hot days, and then only slowly.[2][3][4]

Thelymitra pallidiflora was first formally described in 2004 by Jeff Jeanes and the description was published in Muelleria from a specimen collected near Bells Beach.[5] The specific epithet (pallidiflora) means "pale-flowered".[3]

The pale sun orchid grows in woodland in the central south of Victoria, near Lysterfield, Anglesea and Crib Point.[2][3][4]