Cattleya Ula Ula
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Epidendrum Ulalena
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Cattleya Ulanova
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Cattleya Ulla Blatzheim
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Cattleya Ulliversum
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Cattleya Ulric
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Masdevallia Ulrich
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Cattleya Ultima
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Cattleya Ultor
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Epidendrum Ultra-Vee
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Cattleya Ultraviolet
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Cattleya Ulysses
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Cattleya Umatilla Reef
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Epidendrum umbellatum
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Epidendrum umbelliferum
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Cattleya Umbria
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Cattleya Umea
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Cattleya Umpqua
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Cattleya Un-named grex
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Cattleya Una (1917)
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Cattleya Una (1921)
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Cattleya Una (1922)
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Cattleya Uncle Sheu Wan
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Lepanthes undesc