page_title: Diuris aequalis
section_title: Description
hierarchical_section_title: Diuris aequalis / Description
caption_attribution_description: English: Diuris aequalis labelled
context_page_description: Diuris aequalis, commonly called the buttercup doubletail, is a species of orchid which is endemic to New South Wales. It has two rolled leaves and spikes of two to five golden-yellow to orange flowers and is classified as "vulnerable".
context_section_description: Diuris aequalis is a tuberous, perennial herb, usually growing to a height of 20–45 cm (8–20 in). There are two linear leaves arising from the base of the plant, each leaf 10–20 cm (4–8 in) long, 3–4 mm (0.1–0.2 in) wide and rolled so that the sides of the leaf face each other. There are between two and five golden-yellow to orange flowers arranged on a raceme, usually without spots, each about 25 mm (1 in) wide. The dorsal sepal is broadly egg-shaped to almost circular, 7–10 mm (0.3–0.4 in) long, 8–15 mm (0.3–0.6 in) wide above the flower. The lateral sepals are linear to lance-shaped, 8–13 mm (0.3–0.5 in) long, 2–3 mm (0.08–0.1 in) wide, sickle-shaped and green. The petals are erect, ear-like above the flower, 6–10 mm (0.2–0.4 in) long and 4–6 mm (0.2–0.2 in) wide. The labellum is 5–9 mm (0.2–0.4 in) long, 2.5–5 mm (0.1–0.2 in) wide and has three lobes, the medial lobe ridged in its centre and has two broad calli about 3.5 mm (0.1 in) long. Flowering occurs between October and December, following which the leaves die back to be replaced prior to the next flowering.
caption: D. aequalis flower labelled
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