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a.1.(Bot.) Having a spathe; resembling a spathe; spathal.
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Calyx gamosepalous, campanulate, tubular, spathaceous or urceolate, apex spatulate, bilabiate, truncate or 2-5-lobed, aestivation imbricate, with or without patelliform nectaries.
The flowers are caulioflorous, nocturnal, white, slightly fragrant and spathaceous.
has a spathaceous bract that encloses the inflorescence.