TROPICAL PLANT ENCYCLOPEDIA
Orchidantha maxillarioides
Orchidantha, Orchid-flowerFamily: Lowiaceae
Origin: Southeast Asia, China
Orchidantha maxillarioides means "Orchid-flower", as one of the petals on the flowers is modified into a labellum, like the flowers of orchids.
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Link to this plant:
https://toptropicals.com/catalog/uid/orchidantha_maxillarioides.htm