fringed sun orchid

Thelymitra luteocilium is a tuberous, perennial herb with a single fleshy, channelled, dark green, linear to lance-shaped leaf 100–200 mm (4–8 in) long and 5–8 mm (0.2–0.3 in) wide. Between two and six pale pink to reddish flowers 15–20 mm (0.6–0.8 in) wide are arranged on a flowering stem 150–350 mm (6–10 in) tall. The sepals and petals are 7–10 mm (0.3–0.4 in) long and 5–6 mm (0.20–0.24 in) wide. The column is pink to reddish, 4–5 mm (0.16–0.20 in) long and about 3 mm (0.1 in) wide. The lobe on the top of the anther has a dense fringe and a yellow tip with a dark collar. The side lobes have dense, yellow, mop-like tufts on their ends. The flowers are self-pollinated and open only slowly on hot, humid days. Flowering occurs from August to October.

Fringed sun orchid mostly grows near low shrubs in forest and scrubland in central-western Victoria and eastern South Australia.