Sarcochilus R.Br. >

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Leaves narrow-oblong to lanceolate. Perianth greenish or white
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Sepals and petals broad-ovate to broad-lanceolate
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Perianth greenish brown, 15–30 mm diam. Labellum white with coloured markings. Leaves nearly straight, lanceolate, 3–7 cm long, slightly twisted. Flowers 5–14 per raceme. Widespread. On trees in humid places. Butterfly Orchid Sarcochilus australis