Cryptostylis subulata, commonly known as large tongue orchid, duckbill orchid or cow orchid, is a common and widespread orchid in south eastern Australia and New Zealand. It has relatively large, leathery, dark green to yellowish-green leaves and up to twenty yellowish flowers with a reddish-brown and dark purple labellum. It is often found in damp or swampy situations but also occurs in drier places.

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