Caladenia clavula (Caladenia clavula)
Description
Caladenia clavula is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy, lance-shaped to egg-shaped leaf, 8–13 cm (3–5 in) long and 18–22 mm (0.7–0.9 in) wide. Usually only one flower is borne on a spike 10–20 cm (4–8 in) high. The flowers are greenish-yellow to brownish with central red stripes and are about 35 mm (1 in) wide. The dorsal sepal is 35–45 mm (1–2 in) long, 3–4 mm (0.1–0.2 in) wide, linear in shape for about half its length then narrows to a thread-like tail. The lateral sepals are 30–40 mm (1–2 in) long, about 3 mm (0.1 in) wide, linear to lance-shaped for about half their length, curved like a sickle then narrowed to a thread-like tail. The dorsal and lateral sepals have a yellowish glandular tip. The petals are 22–30 mm (0.9–1 in) long, about 3 mm (0.1 in) wide, linear to lance-shaped and slightly curved. The labellum is broadly heart-shaped when flattened, 13–16 mm (0.5–0.6 in) long and wide, greenish to greenish-brown and has three sections. The lateral sections have five or six teeth, the longest about 5 mm (0.2 in) long. The middle section curves forward and has shorter teeth on its edges, decreasing in length towards the tip. The central part also has rows of golf-stick shaped calli along it centre. Flowering occurs from August to October.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Liliopsida
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Order: Asparagales
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Family: Orchidaceae
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Genus: Caladenia
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