(pronounced: trye-ZEWK-siss)


Maxillarieae subtribe Oncidiinae

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Miniature caespitose epiphytes producing fan-shaped growths. Pseudobulbs minute, completely concealed by leaf sheaths. Leaves altenate, distichous, strongly bilaterally compressed, rigid-fleshy. Inflorescences erect axillary pedunculate panicles. Flowers minute, barely opening, yellowish-white. Dorsal sepal and petals free, the lateral sepals fused for their length. Lip obscurely three-lobed, sessile, without callus. Column stout, club-shaped, without wings or foot; pollinia 2, on a common oblong-ellitpic stipe and minute viscidium.


From the Greel tri, meaning three, and zeuxis, meaning yoking, probably referring to the three partially fused sepals.


A monotypic genus widespread in the Neotropics.

Care and Culture Card

See basic growing conditions and care information below.


Christenson, E. A. 2000. Trizeuxis. Orchids 69(7):671-672.

Schweinfurth, C. 1960. Trizeuxis. Fieldiana (Bot.) 30(3):784-785.