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Caladenia woolcockiorum (Caladenia woolcockiorum)

Description

Caladenia woolcockiorum, commonly known as Woolcock's spider orchid, is a species of orchid endemic to South Australia. It has a single, long, erect, hairy leaf and one or two cream-coloured to greenish-yellow flowers recognised by their long, drooping lateral sepals and petals with their ends having dark glandular tips and by the red-tipped labellum.Caladenia woolcockiorum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy, dull green leaf, 60–150 mm long, 10–13 mm wide which has irregular reddish blotches. One or two cream-coloured to greenish-yellow flowers about 35 mm wide are borne on a stalk 200–350 mm tall. The sepals and petals have blackish, thread-like tips. The dorsal sepal is erect, 30–40 mm long and 3–5 mm wide. The lateral sepals have similar dimensions to the dorsal sepal and turn downwards, nearly parallel to each other and have drooping tips. The petals are 25–30 mm long, about 2 mm wide and turn downwards with drooping tips. The labellum is 16–18 mm long, about 9 mm wide, cream-coloured with a prominent, rosy-red tip which projects forward before turning downwards. The sides of the labellum have dark red teeth up to about 2 mm long and there are four rows of dark red calli up to about 1 mm long along its mid-line. Flowering occurs from August to September.

Taxonomic tree

  • Domain: Eukarya

    • Kingdom: Plantae

      • Phylum:

        • Class: Liliopsida

          • Order: Asparagales

            • Family: Orchidaceae

              • Genus: Caladenia