Prasophyllum R.Br.

Free part of leaf terete. Labellum not articulate on a claw Prasophyllum

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Lateral sepals free

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Labellum variously bent but not reflexed back on itself. Perianth predominantly green or brown but white and green in P. patens

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Labellum margins undulate, crenate or pleated

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Labellum margins not as above, ± entire