Centrolepidaceae

Carpels 2 or more, arranged at different levels on a gynophore; perianth absent Centrolepidaceae

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Outer floral bracts each with an awn usually longer than the broader basal portion. Leaves obtuse, with or without a minute blunt hyaline tip. Widespread. Damp or wet sandy soil Centrolepis fascicularis

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Outer floral bracts with a very short blunt tip, never even half as long as the broader basal portion and often almost obsolete. Leaves terminated by a fine hair-like hyaline point. Widespread. Damp or wet sandy soil Centrolepis strigosa