Diuris secundiflora (Diuris secundiflora)
Description
Diuris secundiflora is a tuberous, perennial herb with a single leaf about 90 mm (4 in) long, 3 mm (0.1 in) wide and folded lengthwise. Between two and eight yellow flowers about 15 mm (0.6 in) wide are borne on one side of a flowering stem about 500 mm (20 in) tall. The dorsal sepal curves backwards, 8–10 mm (0.3–0.4 in) long, about 6 mm (0.2 in) wide and egg-shaped to spatula-shaped. The lateral sepals are linear, 30–40 mm (1–2 in) long, about 1.5 mm (0.06 in) wide and turned downwards. The petals spread widely or are more or less erect, egg-shaped, 6–7 mm (0.2–0.3 in) long and about 5 mm (0.2 in) wide on a dark reddish brown stalk 8–9 mm (0.31–0.35 in) long. The labellum is about 6 mm (0.2 in) long and has three lobes. The centre lobe is fan-shaped, 4 mm (0.16 in) long and 6 mm (0.24 in) wide with a central ridge. The side lobes are about 2 mm (0.08 in) long and less than 1 mm (0.04 in) wide. There are two thick callus ridges 2–3 mm (0.08–0.1 in) long near the mid-line of the labellum. Flowering occurs in October and 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: Diuris
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