Habenaria xanthantha

Habenaria xanthantha, commonly known as freak rein orchid, is a species of orchid that is endemic to far northern Queensland. It has two or three leaves at its base, and up to twenty small white flowers often lacking the nectary spur present on other species in the genus.

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Habenaria xanthantha is a tuberous, perennial herb with two or three upright leaves, 50–80 mm (2–3 in) long and 4–7 mm (0.2–0.3 in) wide. Between eight and twenty white flowers, 6–8 mm (0.24–0.31 in) long and 10–12 mm (0.39–0.47 in) wide are borne on a flowering stem 150–350 mm (6–10 in) tall. The dorsal sepal is about 6 mm (0.2 in) long, 2.5 mm (0.1 in) wide and with the petals, forms a hood over the column. The lateral sepals are 5–6 mm (0.20–0.24 in) long, about 3 mm (0.1 in) wide and spread apart from each other and turn downwards. The petals are similar in size to the lateral sepals. The labellum is 5–7.5 mm (0.2–0.3 in) long, about 3 mm (0.1 in) wide and sometimes has three lobes. When present, the nectary spur is up to 2 mm (0.08 in) long. Flowering occurs from March to April.

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