Caladenia richardsiorum (Caladenia richardsiorum)
Description
Caladenia richardsiorum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single, erect, hairy leaf. The leaf is 160–220 mm (6–9 in) long, 13–15 mm (0.5–0.6 in) wide and has reddish-purple blotches near its base. Usually only a single yellowish-green flower about 40 mm (2 in) across is borne on a spike 200–400 mm (8–20 in) tall. The sepals, but not the petals, have blackish, club-like glandular tips 8–10 mm (0.3–0.4 in) long. The dorsal sepal is erect, 33–40 mm (1–2 in) long, 3–4 mm (0.1–0.2 in) wide and the lateral sepals are 35–42 mm (1–2 in) long and 5–8 mm (0.2–0.3 in) wide, spread apart and curve stiffly downwards. The petals are 23–27 mm (0.9–1 in) long, 3–4 mm (0.1–0.2 in) wide and curve stiffly downwards. The labellum is 12–15 mm (0.5–0.6 in) long and 10–12 mm (0.4–0.5 in) wide, and greenish cream-coloured. The sides of the labellum turn upwards and have dark red, linear teeth up to 2 mm (0.08 in) long, and the tip curves downwards. There are six rows of reddish calli with cream-coloured tips along the labellum mid-line. Flowering occurs from late September to early November
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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