CALADENIA

Caladenia catenata, commonly known as white caladenia, white fingers and lady's fingers, is a plant in the orchid family Orchidaceae and is endemic to New South Wales, Queensland and Victoria. It is a ground orchid with a single hairy leaf and one or two white, sometimes pink flowers on a thin, sparsely-hairy stem. It is similar to Caladenia carnea but lacks the red and white bars on the labellum of that species. 

There are one or two flowers borne on a slender, sparsely hairy spike 10–30 cm high. The sepals and petals are glistening white, rarely pink and are sparsely hairy on the lower part of their backs. The dorsal sepal is linear to oblong, erect or slightly curved forward and is 15–22 mm long. The lateral sepals and petals are about the same length as the dorsal sepal and spreading. The labellum is white or pinkish with a yellowy-orange tip. It is 8–10 mm long, 6–18 mm wide when flattened and has three lobes. The central lobe is triangle-shaped, longer than the lateral lobes, curves downward and has finger-like teeth on its edges. The lateral lobes are narrow and may have a few teeth near their tips. There are two rows of yellow or white, club-shaped calli on the centre of the mid-lobe but only as far forward as the front of the lateral lobes.

Flowering occurs from August to November, earlier in New South Wales than Victoria. This Caladenia is uncommon in Victoria where it grows in scattered populations in forest and woodland east of Melbourne. It is more common in New South Wales where it usually grows in sandy soil in coastal forest and shrubland. It is probably the most common Caladenia in the Sydney region.

This post is part of the Floral Friday Fotos meme.