Diuris filifolia (Diuris filifolia)
Description
Diuris filifolia is a tuberous, perennial herb, growing to a height of 200–450 mm (8–20 in) with between six and thirteen leaves, each 50–120 mm (2–5 in) long and 1–3 mm (0.04–0.1 in) wide. There are between two and seven pale yellow flowers with reddish-brown markings and 20–25 mm (0.8–1 in) long, about 20 mm (0.8 in) wide. The dorsal sepal is more or less erect, tapers towards the tip, 10–13 mm (0.4–0.5 in) long, 7–8 mm (0.28–0.31 in) wide. The lateral sepals are 12–16 mm (0.5–0.6 in) long, 4–5 mm (0.16–0.20 in) wide and turned downwards and forwards. The petals are erect or curved backwards with the blade 9–12 mm (0.4–0.5 in) long and 6–8 mm (0.2–0.3 in) wide on a brown stalk 3–5 mm (0.1–0.2 in) long. The labellum has three lobes, the centre lobe 8–10 mm (0.3–0.4 in) long and 7–9 mm (0.3–0.4 in) wide and the side lobes 3.5–5 mm (0.1–0.2 in) long and about 4 mm (0.2 in) wide. There are two callus ridges 4–6 mm (0.16–0.24 in) long in the mid-line of the labellum. Flowering occurs from October to November and is enhanced by a hot fire the previous summer.
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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