Guarianthe aurantiaca is a species of orchid. It is widespread across much of Mexico, south to Costa Rica.^[1] The diploid chromosome number of G. aurantiaca has been determined as 2n = 40.^[2]

Quick Facts Guarianthe aurantiaca, Scientific classification ...

Guarianthe aurantiaca
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Genus:	Guarianthe
Species:	G. aurantiaca
Binomial name
Guarianthe aurantiaca (Bateman ex Lindl.) Dressler & W.E. Higgins
Synonyms[1]
Amalia aurantiaca (Bateman ex Lindl.) Heynh Epidendrum aurantiacum Bateman ex Lindl. (basionym) Cattleya aurantiaca (Bateman ex Lindl.) P.N. Don Laelia aurantiaca (Bateman ex Lindl.) Beer Broughtonia aurea Lindl. Epidendrum aureum (Lindl.) Lindl.

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The phananthrenoids orchinol and loroglossol have a phytoalexin effect and reduce the growth of G. aurantiaca seedlings.^[3]