Diuris flavescens D.L.Jones APNI*
Description: Terrestrial herb.
Leaves 2, linear, 8–17 cm long, 3–4 mm wide, conduplicate.
Raceme 10–20 cm high, 1–5-flowered. Flowers pale yellow with dark brown markings on the dorsal sepal and labellum, c. 1.2 c. across. Dorsal sepal linear to ovate, 6–9 mm long, 4–5 mm wide, obliquely erect. Lateral sepals linear to oblanceolate, 12–18 mm long, 1.2–1.8 mm wide, deflexed, parallel or crossed. Petals obliquely erect, widely divergent, slightly recurved; lamina elliptic to nearly circular, 6–9 mm long, 4–5 mm wide; claw 4–6 mm long. Labellum 6–8 mm long; lateral lobes linear to ± ovate, obtuse, often irregular, 2–3 mm long, 0.8–1.2 mm wide; midlobe ovate when flattened, 4.5–6.5 mm wide, ridged along midline; callus of 2 divergent, incurved ridges c. 5 mm long.
Distribution and occurrence: Grows in moist grassland in tall sclerophyll forest; rare, near Wingham.
NSW subdivisions: NC
Threatened species: NSW BCA: Critically Endangered; Commonwealth EPBC: Critically Endangered
Text by D. L. Jones
Taxon concept: Flora of NSW 4 (1993)
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