Pterostylis × ralphcranei
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Himantoglossum × samariense
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Ponerorchis × suzukiana
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Habenaria xanthocheila
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Disa Xavier et Maxime Dumont
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Hetaeria xenantha
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Dactylorhiza Xerri
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Disa Yachats
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Platanthera yakumontana
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Hetaeria yakusimensis
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Disa Yellow Bird
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Disa Yellow of Y Saito
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Habenaria Yellow Warbler
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Habenaria yezoensis
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Habenaria yezoensis {var} longicalcarata
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Disa Yolande
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Disa Yorkshire Lass
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Platanthera yosemitensis
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Disa Yoshika Teramura
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Anoectochilus yungianus
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Disa Yvening Shadows
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Stenoglottis zambesiaca
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Gymnadenia zardinii
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Disa Zephyrus Flare